Finding the Fourth Proportional to 1,274,128.88, 1,909,092.72 and 740,150.96

Step by Step Solution

1. Step 1: Write the proportion equation
   1,274,128.88 : 1,909,092.72 = 740,150.96 : x
2. Step 2: Convert to fraction form
   1,274,128.88/1,909,092.72 = 740,150.96/x
3. Step 3: Cross multiply
   1,274,128.88x = 1,909,092.72 × 740,150.96
4. Step 4: Simplify right side
   1,274,128.88x = 1,413,016,809,437.01
5. Step 5: Solve for x
   x = 1,413,016,809,437.01/1,274,128.88
6. Step 6: Final answer
   x = 1,109,006.19