Finding the Fourth Proportional to 2,108,476.89, 3,163,415.18 and 688,579.29

Step by Step Solution

1. Step 1: Write the proportion equation
   2,108,476.89 : 3,163,415.18 = 688,579.29 : x
2. Step 2: Convert to fraction form
   2,108,476.89/3,163,415.18 = 688,579.29/x
3. Step 3: Cross multiply
   2,108,476.89x = 3,163,415.18 × 688,579.29
4. Step 4: Simplify right side
   2,108,476.89x = 2,178,262,175,176.73
5. Step 5: Solve for x
   x = 2,178,262,175,176.73/2,108,476.89
6. Step 6: Final answer
   x = 1,033,097.49