Finding the Fourth Proportional to 1,538.67, 2,123.32 and 940.97

Step by Step Solution

1. Step 1: Write the proportion equation
   1,538.67 : 2,123.32 = 940.97 : x
2. Step 2: Convert to fraction form
   1,538.67/2,123.32 = 940.97/x
3. Step 3: Cross multiply
   1,538.67x = 2,123.32 × 940.97
4. Step 4: Simplify right side
   1,538.67x = 1,997,969.80
5. Step 5: Solve for x
   x = 1,997,969.80/1,538.67
6. Step 6: Final answer
   x = 1,298.50