Finding the Fourth Proportional to 3,618.59, 5,428.27 and 1,152.83

Step by Step Solution

1. Step 1: Write the proportion equation
   3,618.59 : 5,428.27 = 1,152.83 : x
2. Step 2: Convert to fraction form
   3,618.59/5,428.27 = 1,152.83/x
3. Step 3: Cross multiply
   3,618.59x = 5,428.27 × 1,152.83
4. Step 4: Simplify right side
   3,618.59x = 6,257,887.52
5. Step 5: Solve for x
   x = 6,257,887.52/3,618.59
6. Step 6: Final answer
   x = 1,729.37