Finding the Fourth Proportional to 5,100.71, 7,644.59 and 2,328.89

Step by Step Solution

1. Step 1: Write the proportion equation
   5,100.71 : 7,644.59 = 2,328.89 : x
2. Step 2: Convert to fraction form
   5,100.71/7,644.59 = 2,328.89/x
3. Step 3: Cross multiply
   5,100.71x = 7,644.59 × 2,328.89
4. Step 4: Simplify right side
   5,100.71x = 17,803,397.56
5. Step 5: Solve for x
   x = 17,803,397.56/5,100.71
6. Step 6: Final answer
   x = 3,490.38