Finding the Fourth Proportional to 2,000.30, 2,761.29 and 1,557.43

Step by Step Solution

1. Step 1: Write the proportion equation
   2,000.30 : 2,761.29 = 1,557.43 : x
2. Step 2: Convert to fraction form
   2,000.30/2,761.29 = 1,557.43/x
3. Step 3: Cross multiply
   2,000.30x = 2,761.29 × 1,557.43
4. Step 4: Simplify right side
   2,000.30x = 4,300,508.98
5. Step 5: Solve for x
   x = 4,300,508.98/2,000.30
6. Step 6: Final answer
   x = 2,149.94