Finding the Fourth Proportional to 1,298,499.09, 1,791,924.96 and 725,539.71

Step by Step Solution

1. Step 1: Write the proportion equation
   1,298,499.09 : 1,791,924.96 = 725,539.71 : x
2. Step 2: Convert to fraction form
   1,298,499.09/1,791,924.96 = 725,539.71/x
3. Step 3: Cross multiply
   1,298,499.09x = 1,791,924.96 × 725,539.71
4. Step 4: Simplify right side
   1,298,499.09x = 1,300,112,715,820.16
5. Step 5: Solve for x
   x = 1,300,112,715,820.16/1,298,499.09
6. Step 6: Final answer
   x = 1,001,242.69