Finding the Fourth Proportional to 1,475.32, 2,213.25 and 993.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,475.32 : 2,213.25 = 993.10 : x
2. Step 2: Convert to fraction form
   1,475.32/2,213.25 = 993.10/x
3. Step 3: Cross multiply
   1,475.32x = 2,213.25 × 993.10
4. Step 4: Simplify right side
   1,475.32x = 2,197,978.58
5. Step 5: Solve for x
   x = 2,197,978.58/1,475.32
6. Step 6: Final answer
   x = 1,489.83