Finding the Fourth Proportional to 3,868,598.31, 5,802,541.62 and 1,309,520.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,868,598.31 : 5,802,541.62 = 1,309,520.72 : x
2. Step 2: Convert to fraction form
   3,868,598.31/5,802,541.62 = 1,309,520.72/x
3. Step 3: Cross multiply
   3,868,598.31x = 5,802,541.62 × 1,309,520.72
4. Step 4: Simplify right side
   3,868,598.31x = 7,598,548,489,648.02
5. Step 5: Solve for x
   x = 7,598,548,489,648.02/3,868,598.31
6. Step 6: Final answer
   x = 1,964,160.63