Finding the Fourth Proportional to 2,639,311.30, 3,960,957.27 and 1,931,166.34

Step by Step Solution

1. Step 1: Write the proportion equation
   2,639,311.30 : 3,960,957.27 = 1,931,166.34 : x
2. Step 2: Convert to fraction form
   2,639,311.30/3,960,957.27 = 1,931,166.34/x
3. Step 3: Cross multiply
   2,639,311.30x = 3,960,957.27 × 1,931,166.34
4. Step 4: Simplify right side
   2,639,311.30x = 7,649,267,354,002.29
5. Step 5: Solve for x
   x = 7,649,267,354,002.29/2,639,311.30
6. Step 6: Final answer
   x = 2,898,205.81