Finding the Fourth Proportional to 3,120,314.10, 4,680,989.55 and 1,227,117.30

Step by Step Solution

1. Step 1: Write the proportion equation
   3,120,314.10 : 4,680,989.55 = 1,227,117.30 : x
2. Step 2: Convert to fraction form
   3,120,314.10/4,680,989.55 = 1,227,117.30/x
3. Step 3: Cross multiply
   3,120,314.10x = 4,680,989.55 × 1,227,117.30
4. Step 4: Simplify right side
   3,120,314.10x = 5,744,123,257,924.22
5. Step 5: Solve for x
   x = 5,744,123,257,924.22/3,120,314.10
6. Step 6: Final answer
   x = 1,840,879.82