Finding the Fourth Proportional to 5,665.96, 8,499.30 and 1,505.90

Step by Step Solution

1. Step 1: Write the proportion equation
   5,665.96 : 8,499.30 = 1,505.90 : x
2. Step 2: Convert to fraction form
   5,665.96/8,499.30 = 1,505.90/x
3. Step 3: Cross multiply
   5,665.96x = 8,499.30 × 1,505.90
4. Step 4: Simplify right side
   5,665.96x = 12,799,095.87
5. Step 5: Solve for x
   x = 12,799,095.87/5,665.96
6. Step 6: Final answer
   x = 2,258.95