Finding the Fourth Proportional to 1,156.74, 1,596.32 and 632.78

Step by Step Solution

1. Step 1: Write the proportion equation
   1,156.74 : 1,596.32 = 632.78 : x
2. Step 2: Convert to fraction form
   1,156.74/1,596.32 = 632.78/x
3. Step 3: Cross multiply
   1,156.74x = 1,596.32 × 632.78
4. Step 4: Simplify right side
   1,156.74x = 1,010,119.37
5. Step 5: Solve for x
   x = 1,010,119.37/1,156.74
6. Step 6: Final answer
   x = 873.25