Finding the Fourth Proportional to 1,790,080.74, 2,685,128.42 and 725,142.96

Step by Step Solution

1. Step 1: Write the proportion equation
   1,790,080.74 : 2,685,128.42 = 725,142.96 : x
2. Step 2: Convert to fraction form
   1,790,080.74/2,685,128.42 = 725,142.96/x
3. Step 3: Cross multiply
   1,790,080.74x = 2,685,128.42 × 725,142.96
4. Step 4: Simplify right side
   1,790,080.74x = 1,947,101,972,271.78
5. Step 5: Solve for x
   x = 1,947,101,972,271.78/1,790,080.74
6. Step 6: Final answer
   x = 1,087,717.40