Finding the Fourth Proportional to 4,752.29, 7,128.90 and 1,789.98

Step by Step Solution

1. Step 1: Write the proportion equation
   4,752.29 : 7,128.90 = 1,789.98 : x
2. Step 2: Convert to fraction form
   4,752.29/7,128.90 = 1,789.98/x
3. Step 3: Cross multiply
   4,752.29x = 7,128.90 × 1,789.98
4. Step 4: Simplify right side
   4,752.29x = 12,760,588.42
5. Step 5: Solve for x
   x = 12,760,588.42/4,752.29
6. Step 6: Final answer
   x = 2,685.15