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Finding the Fourth Proportional to 1,917.08, 2,870.08 and 1,124.04

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Solution

The fourth proportional to 1,917.08, 2,870.08 and 1,124.04 is: 1,682.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,917.08 : 2,870.08 = 1,124.04 : x
  2. Step 2: Convert to fraction form
    1,917.08/2,870.08 = 1,124.04/x
  3. Step 3: Cross multiply
    1,917.08x = 2,870.08 × 1,124.04
  4. Step 4: Simplify right side
    1,917.08x = 3,226,084.72
  5. Step 5: Solve for x
    x = 3,226,084.72/1,917.08
  6. Step 6: Final answer
    x = 1,682.81

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