Finding the Fourth Proportional to 1,298,149.72, 1,791,515.39 and 782,066.07

Step by Step Solution

1. Step 1: Write the proportion equation
   1,298,149.72 : 1,791,515.39 = 782,066.07 : x
2. Step 2: Convert to fraction form
   1,298,149.72/1,791,515.39 = 782,066.07/x
3. Step 3: Cross multiply
   1,298,149.72x = 1,791,515.39 × 782,066.07
4. Step 4: Simplify right side
   1,298,149.72x = 1,401,083,410,098.25
5. Step 5: Solve for x
   x = 1,401,083,410,098.25/1,298,149.72
6. Step 6: Final answer
   x = 1,079,292.62