Finding the Fourth Proportional to 1,029,146.76, 1,420,222.52 and 626,738.76

Step by Step Solution

1. Step 1: Write the proportion equation
   1,029,146.76 : 1,420,222.52 = 626,738.76 : x
2. Step 2: Convert to fraction form
   1,029,146.76/1,420,222.52 = 626,738.76/x
3. Step 3: Cross multiply
   1,029,146.76x = 1,420,222.52 × 626,738.76
4. Step 4: Simplify right side
   1,029,146.76x = 890,108,501,108.88
5. Step 5: Solve for x
   x = 890,108,501,108.88/1,029,146.76
6. Step 6: Final answer
   x = 864,899.48