Finding the Fourth Proportional to 2,117,245.27, 3,174,082.59 and 918,264.55

Step by Step Solution

1. Step 1: Write the proportion equation
   2,117,245.27 : 3,174,082.59 = 918,264.55 : x
2. Step 2: Convert to fraction form
   2,117,245.27/3,174,082.59 = 918,264.55/x
3. Step 3: Cross multiply
   2,117,245.27x = 3,174,082.59 × 918,264.55
4. Step 4: Simplify right side
   2,117,245.27x = 2,914,647,521,169.18
5. Step 5: Solve for x
   x = 2,914,647,521,169.18/2,117,245.27
6. Step 6: Final answer
   x = 1,376,622.52