Finding the Fourth Proportional to 1,499.50, 2,070.58 and 940.90

Step by Step Solution

1. Step 1: Write the proportion equation
   1,499.50 : 2,070.58 = 940.90 : x
2. Step 2: Convert to fraction form
   1,499.50/2,070.58 = 940.90/x
3. Step 3: Cross multiply
   1,499.50x = 2,070.58 × 940.90
4. Step 4: Simplify right side
   1,499.50x = 1,948,208.72
5. Step 5: Solve for x
   x = 1,948,208.72/1,499.50
6. Step 6: Final answer
   x = 1,299.24