Finding the Fourth Proportional to 1,027.42, 1,417.82 and 634.43

Step by Step Solution

1. Step 1: Write the proportion equation
   1,027.42 : 1,417.82 = 634.43 : x
2. Step 2: Convert to fraction form
   1,027.42/1,417.82 = 634.43/x
3. Step 3: Cross multiply
   1,027.42x = 1,417.82 × 634.43
4. Step 4: Simplify right side
   1,027.42x = 899,507.91
5. Step 5: Solve for x
   x = 899,507.91/1,027.42
6. Step 6: Final answer
   x = 875.50