Finding the Fourth Proportional to 1,783.40, 2,460.69 and 997.43

Step by Step Solution

1. Step 1: Write the proportion equation
   1,783.40 : 2,460.69 = 997.43 : x
2. Step 2: Convert to fraction form
   1,783.40/2,460.69 = 997.43/x
3. Step 3: Cross multiply
   1,783.40x = 2,460.69 × 997.43
4. Step 4: Simplify right side
   1,783.40x = 2,454,353.72
5. Step 5: Solve for x
   x = 2,454,353.72/1,783.40
6. Step 6: Final answer
   x = 1,376.23