Finding the Fourth Proportional to 1,783.28, 2,461.02 and 997.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,783.28 : 2,461.02 = 997.31 : x
2. Step 2: Convert to fraction form
   1,783.28/2,461.02 = 997.31/x
3. Step 3: Cross multiply
   1,783.28x = 2,461.02 × 997.31
4. Step 4: Simplify right side
   1,783.28x = 2,454,399.86
5. Step 5: Solve for x
   x = 2,454,399.86/1,783.28
6. Step 6: Final answer
   x = 1,376.34