Finding the Fourth Proportional to 1,111.55, 1,530.36 and 963.32

Step by Step Solution

1. Step 1: Write the proportion equation
   1,111.55 : 1,530.36 = 963.32 : x
2. Step 2: Convert to fraction form
   1,111.55/1,530.36 = 963.32/x
3. Step 3: Cross multiply
   1,111.55x = 1,530.36 × 963.32
4. Step 4: Simplify right side
   1,111.55x = 1,474,218.74
5. Step 5: Solve for x
   x = 1,474,218.74/1,111.55
6. Step 6: Final answer
   x = 1,326.28