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Finding the Fourth Proportional to 1,657.48, 2,487.78 and 1,195.72

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Solution

The fourth proportional to 1,657.48, 2,487.78 and 1,195.72 is: 1,794.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,657.48 : 2,487.78 = 1,195.72 : x
  2. Step 2: Convert to fraction form
    1,657.48/2,487.78 = 1,195.72/x
  3. Step 3: Cross multiply
    1,657.48x = 2,487.78 × 1,195.72
  4. Step 4: Simplify right side
    1,657.48x = 2,974,688.30
  5. Step 5: Solve for x
    x = 2,974,688.30/1,657.48
  6. Step 6: Final answer
    x = 1,794.71

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