Finding the Fourth Proportional to 4,894.31, 7,337.59 and 2,428.47

Step by Step Solution

1. Step 1: Write the proportion equation
   4,894.31 : 7,337.59 = 2,428.47 : x
2. Step 2: Convert to fraction form
   4,894.31/7,337.59 = 2,428.47/x
3. Step 3: Cross multiply
   4,894.31x = 7,337.59 × 2,428.47
4. Step 4: Simplify right side
   4,894.31x = 17,819,111.12
5. Step 5: Solve for x
   x = 17,819,111.12/4,894.31
6. Step 6: Final answer
   x = 3,640.78