Finding the Fourth Proportional to 1,023.17, 1,412.42 and 708.37

Step by Step Solution

1. Step 1: Write the proportion equation
   1,023.17 : 1,412.42 = 708.37 : x
2. Step 2: Convert to fraction form
   1,023.17/1,412.42 = 708.37/x
3. Step 3: Cross multiply
   1,023.17x = 1,412.42 × 708.37
4. Step 4: Simplify right side
   1,023.17x = 1,000,508.88
5. Step 5: Solve for x
   x = 1,000,508.88/1,023.17
6. Step 6: Final answer
   x = 977.86