Finding the Fourth Proportional to 1,325.94, 1,987.61 and 632.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,325.94 : 1,987.61 = 632.42 : x
2. Step 2: Convert to fraction form
   1,325.94/1,987.61 = 632.42/x
3. Step 3: Cross multiply
   1,325.94x = 1,987.61 × 632.42
4. Step 4: Simplify right side
   1,325.94x = 1,257,004.32
5. Step 5: Solve for x
   x = 1,257,004.32/1,325.94
6. Step 6: Final answer
   x = 948.01