Finding the Fourth Proportional to 1,036.42, 1,432.17 and 887.02

Step by Step Solution

1. Step 1: Write the proportion equation
   1,036.42 : 1,432.17 = 887.02 : x
2. Step 2: Convert to fraction form
   1,036.42/1,432.17 = 887.02/x
3. Step 3: Cross multiply
   1,036.42x = 1,432.17 × 887.02
4. Step 4: Simplify right side
   1,036.42x = 1,270,363.43
5. Step 5: Solve for x
   x = 1,270,363.43/1,036.42
6. Step 6: Final answer
   x = 1,225.72