Finding the Fourth Proportional to 1,540.50, 2,123.34 and 1,069.08

Step by Step Solution

1. Step 1: Write the proportion equation
   1,540.50 : 2,123.34 = 1,069.08 : x
2. Step 2: Convert to fraction form
   1,540.50/2,123.34 = 1,069.08/x
3. Step 3: Cross multiply
   1,540.50x = 2,123.34 × 1,069.08
4. Step 4: Simplify right side
   1,540.50x = 2,270,020.33
5. Step 5: Solve for x
   x = 2,270,020.33/1,540.50
6. Step 6: Final answer
   x = 1,473.56