Finding the Fourth Proportional to 1,173,064.91, 1,618,854.54 and 663,767.29

Step by Step Solution

1. Step 1: Write the proportion equation
   1,173,064.91 : 1,618,854.54 = 663,767.29 : x
2. Step 2: Convert to fraction form
   1,173,064.91/1,618,854.54 = 663,767.29/x
3. Step 3: Cross multiply
   1,173,064.91x = 1,618,854.54 × 663,767.29
4. Step 4: Simplify right side
   1,173,064.91x = 1,074,542,682,825.72
5. Step 5: Solve for x
   x = 1,074,542,682,825.72/1,173,064.91
6. Step 6: Final answer
   x = 916,012.98