Finding the Fourth Proportional to 1,298,151.23, 1,791,517.47 and 782,067.57

Step by Step Solution

1. Step 1: Write the proportion equation
   1,298,151.23 : 1,791,517.47 = 782,067.57 : x
2. Step 2: Convert to fraction form
   1,298,151.23/1,791,517.47 = 782,067.57/x
3. Step 3: Cross multiply
   1,298,151.23x = 1,791,517.47 × 782,067.57
4. Step 4: Simplify right side
   1,298,151.23x = 1,401,087,714,375.45
5. Step 5: Solve for x
   x = 1,401,087,714,375.45/1,298,151.23
6. Step 6: Final answer
   x = 1,079,294.68