Finding the Fourth Proportional to 2,032.40, 3,047.16 and 992.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,032.40 : 3,047.16 = 992.72 : x
2. Step 2: Convert to fraction form
   2,032.40/3,047.16 = 992.72/x
3. Step 3: Cross multiply
   2,032.40x = 3,047.16 × 992.72
4. Step 4: Simplify right side
   2,032.40x = 3,024,976.68
5. Step 5: Solve for x
   x = 3,024,976.68/2,032.40
6. Step 6: Final answer
   x = 1,488.38