Finding the Fourth Proportional to 2,280,308.15, 3,420,994.46 and 661,110.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,280,308.15 : 3,420,994.46 = 661,110.72 : x
2. Step 2: Convert to fraction form
   2,280,308.15/3,420,994.46 = 661,110.72/x
3. Step 3: Cross multiply
   2,280,308.15x = 3,420,994.46 × 661,110.72
4. Step 4: Simplify right side
   2,280,308.15x = 2,261,656,110,566.61
5. Step 5: Solve for x
   x = 2,261,656,110,566.61/2,280,308.15
6. Step 6: Final answer
   x = 991,820.39