Finding the Fourth Proportional to 1,267,080.56, 1,900,223.42 and 413,957.83

Step by Step Solution

1. Step 1: Write the proportion equation
   1,267,080.56 : 1,900,223.42 = 413,957.83 : x
2. Step 2: Convert to fraction form
   1,267,080.56/1,900,223.42 = 413,957.83/x
3. Step 3: Cross multiply
   1,267,080.56x = 1,900,223.42 × 413,957.83
4. Step 4: Simplify right side
   1,267,080.56x = 786,612,369,038.10
5. Step 5: Solve for x
   x = 786,612,369,038.10/1,267,080.56
6. Step 6: Final answer
   x = 620,806.91