Finding the Fourth Proportional to 2,715,781.29, 4,074,112.85 and 918,774.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,715,781.29 : 4,074,112.85 = 918,774.15 : x
2. Step 2: Convert to fraction form
   2,715,781.29/4,074,112.85 = 918,774.15/x
3. Step 3: Cross multiply
   2,715,781.29x = 4,074,112.85 × 918,774.15
4. Step 4: Simplify right side
   2,715,781.29x = 3,743,189,566,168.96
5. Step 5: Solve for x
   x = 3,743,189,566,168.96/2,715,781.29
6. Step 6: Final answer
   x = 1,378,310.39