Finding the Fourth Proportional to 1,298,496.34, 1,791,921.18 and 725,536.95

Step by Step Solution

1. Step 1: Write the proportion equation
   1,298,496.34 : 1,791,921.18 = 725,536.95 : x
2. Step 2: Convert to fraction form
   1,298,496.34/1,791,921.18 = 725,536.95/x
3. Step 3: Cross multiply
   1,298,496.34x = 1,791,921.18 × 725,536.95
4. Step 4: Simplify right side
   1,298,496.34x = 1,300,105,027,577.60
5. Step 5: Solve for x
   x = 1,300,105,027,577.60/1,298,496.34
6. Step 6: Final answer
   x = 1,001,238.88