Finding the Fourth Proportional to 1,490.82, 2,059.50 and 1,231.62

Step by Step Solution

1. Step 1: Write the proportion equation
   1,490.82 : 2,059.50 = 1,231.62 : x
2. Step 2: Convert to fraction form
   1,490.82/2,059.50 = 1,231.62/x
3. Step 3: Cross multiply
   1,490.82x = 2,059.50 × 1,231.62
4. Step 4: Simplify right side
   1,490.82x = 2,536,521.39
5. Step 5: Solve for x
   x = 2,536,521.39/1,490.82
6. Step 6: Final answer
   x = 1,701.43