Finding the Fourth Proportional to 2,660,423.10, 3,991,224.33 and 767,016.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,660,423.10 : 3,991,224.33 = 767,016.78 : x
2. Step 2: Convert to fraction form
   2,660,423.10/3,991,224.33 = 767,016.78/x
3. Step 3: Cross multiply
   2,660,423.10x = 3,991,224.33 × 767,016.78
4. Step 4: Simplify right side
   2,660,423.10x = 3,061,336,033,854.26
5. Step 5: Solve for x
   x = 3,061,336,033,854.26/2,660,423.10
6. Step 6: Final answer
   x = 1,150,695.18