Finding the Fourth Proportional to 1,724.25, 2,586.89 and 994.35

Step by Step Solution

1. Step 1: Write the proportion equation
   1,724.25 : 2,586.89 = 994.35 : x
2. Step 2: Convert to fraction form
   1,724.25/2,586.89 = 994.35/x
3. Step 3: Cross multiply
   1,724.25x = 2,586.89 × 994.35
4. Step 4: Simplify right side
   1,724.25x = 2,572,269.10
5. Step 5: Solve for x
   x = 2,572,269.10/1,724.25
6. Step 6: Final answer
   x = 1,491.82