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Finding the Fourth Proportional to 2,656.52, 3,986.62 and 1,358.84

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Solution

The fourth proportional to 2,656.52, 3,986.62 and 1,358.84 is: 2,039.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,656.52 : 3,986.62 = 1,358.84 : x
  2. Step 2: Convert to fraction form
    2,656.52/3,986.62 = 1,358.84/x
  3. Step 3: Cross multiply
    2,656.52x = 3,986.62 × 1,358.84
  4. Step 4: Simplify right side
    2,656.52x = 5,417,178.72
  5. Step 5: Solve for x
    x = 5,417,178.72/2,656.52
  6. Step 6: Final answer
    x = 2,039.20

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