Finding the Fourth Proportional to 3,120,328.10, 4,681,010.55 and 1,227,131.30

Step by Step Solution

1. Step 1: Write the proportion equation
   3,120,328.10 : 4,681,010.55 = 1,227,131.30 : x
2. Step 2: Convert to fraction form
   3,120,328.10/4,681,010.55 = 1,227,131.30/x
3. Step 3: Cross multiply
   3,120,328.10x = 4,681,010.55 × 1,227,131.30
4. Step 4: Simplify right side
   3,120,328.10x = 5,744,214,561,535.22
5. Step 5: Solve for x
   x = 5,744,214,561,535.22/3,120,328.10
6. Step 6: Final answer
   x = 1,840,900.82