Finding the Fourth Proportional to 1,538.56, 2,123.16 and 950.08

Step by Step Solution

1. Step 1: Write the proportion equation
   1,538.56 : 2,123.16 = 950.08 : x
2. Step 2: Convert to fraction form
   1,538.56/2,123.16 = 950.08/x
3. Step 3: Cross multiply
   1,538.56x = 2,123.16 × 950.08
4. Step 4: Simplify right side
   1,538.56x = 2,017,171.85
5. Step 5: Solve for x
   x = 2,017,171.85/1,538.56
6. Step 6: Final answer
   x = 1,311.08