Finding the Fourth Proportional to 1,488,406.10, 2,233,127.55 and 647,561.30

Step by Step Solution

1. Step 1: Write the proportion equation
   1,488,406.10 : 2,233,127.55 = 647,561.30 : x
2. Step 2: Convert to fraction form
   1,488,406.10/2,233,127.55 = 647,561.30/x
3. Step 3: Cross multiply
   1,488,406.10x = 2,233,127.55 × 647,561.30
4. Step 4: Simplify right side
   1,488,406.10x = 1,446,086,979,343.82
5. Step 5: Solve for x
   x = 1,446,086,979,343.82/1,488,406.10
6. Step 6: Final answer
   x = 971,567.49