Finding the Fourth Proportional to 1,990.32, 2,747.12 and 1,204.48

Step by Step Solution

1. Step 1: Write the proportion equation
   1,990.32 : 2,747.12 = 1,204.48 : x
2. Step 2: Convert to fraction form
   1,990.32/2,747.12 = 1,204.48/x
3. Step 3: Cross multiply
   1,990.32x = 2,747.12 × 1,204.48
4. Step 4: Simplify right side
   1,990.32x = 3,308,851.10
5. Step 5: Solve for x
   x = 3,308,851.10/1,990.32
6. Step 6: Final answer
   x = 1,662.47