Finding the Fourth Proportional to 3,569.31, 5,353.38 and 972.45

Step by Step Solution

1. Step 1: Write the proportion equation
   3,569.31 : 5,353.38 = 972.45 : x
2. Step 2: Convert to fraction form
   3,569.31/5,353.38 = 972.45/x
3. Step 3: Cross multiply
   3,569.31x = 5,353.38 × 972.45
4. Step 4: Simplify right side
   3,569.31x = 5,205,894.38
5. Step 5: Solve for x
   x = 5,205,894.38/3,569.31
6. Step 6: Final answer
   x = 1,458.52