Finding the Fourth Proportional to 1,052.21, 1,452.33 and 632.59

Step by Step Solution

1. Step 1: Write the proportion equation
   1,052.21 : 1,452.33 = 632.59 : x
2. Step 2: Convert to fraction form
   1,052.21/1,452.33 = 632.59/x
3. Step 3: Cross multiply
   1,052.21x = 1,452.33 × 632.59
4. Step 4: Simplify right side
   1,052.21x = 918,725.80
5. Step 5: Solve for x
   x = 918,725.80/1,052.21
6. Step 6: Final answer
   x = 873.14