Finding the Fourth Proportional to 1,490.50, 2,234.94 and 667.95

Step by Step Solution

1. Step 1: Write the proportion equation
   1,490.50 : 2,234.94 = 667.95 : x
2. Step 2: Convert to fraction form
   1,490.50/2,234.94 = 667.95/x
3. Step 3: Cross multiply
   1,490.50x = 2,234.94 × 667.95
4. Step 4: Simplify right side
   1,490.50x = 1,492,828.17
5. Step 5: Solve for x
   x = 1,492,828.17/1,490.50
6. Step 6: Final answer
   x = 1,001.56