Finding the Fourth Proportional to 2,309,734.85, 3,187,454.72 and 1,277,312.11

Step by Step Solution

1. Step 1: Write the proportion equation
   2,309,734.85 : 3,187,454.72 = 1,277,312.11 : x
2. Step 2: Convert to fraction form
   2,309,734.85/3,187,454.72 = 1,277,312.11/x
3. Step 3: Cross multiply
   2,309,734.85x = 3,187,454.72 × 1,277,312.11
4. Step 4: Simplify right side
   2,309,734.85x = 4,071,374,499,577.46
5. Step 5: Solve for x
   x = 4,071,374,499,577.46/2,309,734.85
6. Step 6: Final answer
   x = 1,762,702.12