Finding the Fourth Proportional to 1,609,142.37, 2,220,233.67 and 911,429.16

Step by Step Solution

1. Step 1: Write the proportion equation
   1,609,142.37 : 2,220,233.67 = 911,429.16 : x
2. Step 2: Convert to fraction form
   1,609,142.37/2,220,233.67 = 911,429.16/x
3. Step 3: Cross multiply
   1,609,142.37x = 2,220,233.67 × 911,429.16
4. Step 4: Simplify right side
   1,609,142.37x = 2,023,585,708,851.82
5. Step 5: Solve for x
   x = 2,023,585,708,851.82/1,609,142.37
6. Step 6: Final answer
   x = 1,257,555.42