Finding the Fourth Proportional to 3,687,854.72, 5,090,498.88 and 2,160,448.64

Step by Step Solution

1. Step 1: Write the proportion equation
   3,687,854.72 : 5,090,498.88 = 2,160,448.64 : x
2. Step 2: Convert to fraction form
   3,687,854.72/5,090,498.88 = 2,160,448.64/x
3. Step 3: Cross multiply
   3,687,854.72x = 5,090,498.88 × 2,160,448.64
4. Step 4: Simplify right side
   3,687,854.72x = 10,997,761,382,217.52
5. Step 5: Solve for x
   x = 10,997,761,382,217.52/3,687,854.72
6. Step 6: Final answer
   x = 2,982,156.90