Finding the Fourth Proportional to 1,542.42, 2,314.15 and 677.30

Step by Step Solution

1. Step 1: Write the proportion equation
   1,542.42 : 2,314.15 = 677.30 : x
2. Step 2: Convert to fraction form
   1,542.42/2,314.15 = 677.30/x
3. Step 3: Cross multiply
   1,542.42x = 2,314.15 × 677.30
4. Step 4: Simplify right side
   1,542.42x = 1,567,373.80
5. Step 5: Solve for x
   x = 1,567,373.80/1,542.42
6. Step 6: Final answer
   x = 1,016.18