Finding the Fourth Proportional to 3,665.64, 5,499.69 and 1,473.78

Step by Step Solution

1. Step 1: Write the proportion equation
   3,665.64 : 5,499.69 = 1,473.78 : x
2. Step 2: Convert to fraction form
   3,665.64/5,499.69 = 1,473.78/x
3. Step 3: Cross multiply
   3,665.64x = 5,499.69 × 1,473.78
4. Step 4: Simplify right side
   3,665.64x = 8,105,333.13
5. Step 5: Solve for x
   x = 8,105,333.13/3,665.64
6. Step 6: Final answer
   x = 2,211.16