Finding the Fourth Proportional to 2,639,300.80, 3,960,941.52 and 1,931,155.84

Step by Step Solution

1. Step 1: Write the proportion equation
   2,639,300.80 : 3,960,941.52 = 1,931,155.84 : x
2. Step 2: Convert to fraction form
   2,639,300.80/3,960,941.52 = 1,931,155.84/x
3. Step 3: Cross multiply
   2,639,300.80x = 3,960,941.52 × 1,931,155.84
4. Step 4: Simplify right side
   2,639,300.80x = 7,649,195,348,246.48
5. Step 5: Solve for x
   x = 7,649,195,348,246.48/2,639,300.80
6. Step 6: Final answer
   x = 2,898,190.06