Finding the Fourth Proportional to 3,665.28, 5,499.18 and 1,068.60

Step by Step Solution

1. Step 1: Write the proportion equation
   3,665.28 : 5,499.18 = 1,068.60 : x
2. Step 2: Convert to fraction form
   3,665.28/5,499.18 = 1,068.60/x
3. Step 3: Cross multiply
   3,665.28x = 5,499.18 × 1,068.60
4. Step 4: Simplify right side
   3,665.28x = 5,876,423.75
5. Step 5: Solve for x
   x = 5,876,423.75/3,665.28
6. Step 6: Final answer
   x = 1,603.27