Finding the Fourth Proportional to 981.83, 1,471.83 and 494.31

Step by Step Solution

1. Step 1: Write the proportion equation
   981.83 : 1,471.83 = 494.31 : x
2. Step 2: Convert to fraction form
   981.83/1,471.83 = 494.31/x
3. Step 3: Cross multiply
   981.83x = 1,471.83 × 494.31
4. Step 4: Simplify right side
   981.83x = 727,535.67
5. Step 5: Solve for x
   x = 727,535.67/981.83
6. Step 6: Final answer
   x = 741.00