Finding the Fourth Proportional to 3,569.36, 5,353.56 and 972.08

Step by Step Solution

1. Step 1: Write the proportion equation
   3,569.36 : 5,353.56 = 972.08 : x
2. Step 2: Convert to fraction form
   3,569.36/5,353.56 = 972.08/x
3. Step 3: Cross multiply
   3,569.36x = 5,353.56 × 972.08
4. Step 4: Simplify right side
   3,569.36x = 5,204,088.60
5. Step 5: Solve for x
   x = 5,204,088.60/3,569.36
6. Step 6: Final answer
   x = 1,457.99