Finding the Fourth Proportional to 1,499.68, 2,069.50 and 940.45

Step by Step Solution

1. Step 1: Write the proportion equation
   1,499.68 : 2,069.50 = 940.45 : x
2. Step 2: Convert to fraction form
   1,499.68/2,069.50 = 940.45/x
3. Step 3: Cross multiply
   1,499.68x = 2,069.50 × 940.45
4. Step 4: Simplify right side
   1,499.68x = 1,946,261.28
5. Step 5: Solve for x
   x = 1,946,261.28/1,499.68
6. Step 6: Final answer
   x = 1,297.78