Finding the Fourth Proportional to 2,380.48, 3,569.38 and 992.32

Step by Step Solution

1. Step 1: Write the proportion equation
   2,380.48 : 3,569.38 = 992.32 : x
2. Step 2: Convert to fraction form
   2,380.48/3,569.38 = 992.32/x
3. Step 3: Cross multiply
   2,380.48x = 3,569.38 × 992.32
4. Step 4: Simplify right side
   2,380.48x = 3,541,967.16
5. Step 5: Solve for x
   x = 3,541,967.16/2,380.48
6. Step 6: Final answer
   x = 1,487.92