Finding the Fourth Proportional to 1,298,496.09, 1,791,920.82 and 725,536.71

Step by Step Solution

1. Step 1: Write the proportion equation
   1,298,496.09 : 1,791,920.82 = 725,536.71 : x
2. Step 2: Convert to fraction form
   1,298,496.09/1,791,920.82 = 725,536.71/x
3. Step 3: Cross multiply
   1,298,496.09x = 1,791,920.82 × 725,536.71
4. Step 4: Simplify right side
   1,298,496.09x = 1,300,104,336,323.30
5. Step 5: Solve for x
   x = 1,300,104,336,323.30/1,298,496.09
6. Step 6: Final answer
   x = 1,001,238.55