Finding the Fourth Proportional to 1,597.10, 2,204.56 and 999.32

Step by Step Solution

1. Step 1: Write the proportion equation
   1,597.10 : 2,204.56 = 999.32 : x
2. Step 2: Convert to fraction form
   1,597.10/2,204.56 = 999.32/x
3. Step 3: Cross multiply
   1,597.10x = 2,204.56 × 999.32
4. Step 4: Simplify right side
   1,597.10x = 2,203,060.90
5. Step 5: Solve for x
   x = 2,203,060.90/1,597.10
6. Step 6: Final answer
   x = 1,379.41