Finding the Fourth Proportional to 1,144,016.74, 1,578,738.72 and 627,779.26

Step by Step Solution

1. Step 1: Write the proportion equation
   1,144,016.74 : 1,578,738.72 = 627,779.26 : x
2. Step 2: Convert to fraction form
   1,144,016.74/1,578,738.72 = 627,779.26/x
3. Step 3: Cross multiply
   1,144,016.74x = 1,578,738.72 × 627,779.26
4. Step 4: Simplify right side
   1,144,016.74x = 991,099,425,374.95
5. Step 5: Solve for x
   x = 991,099,425,374.95/1,144,016.74
6. Step 6: Final answer
   x = 866,332.97