Finding the Fourth Proportional to 1,103.96, 1,523.52 and 631.88

Step by Step Solution

1. Step 1: Write the proportion equation
   1,103.96 : 1,523.52 = 631.88 : x
2. Step 2: Convert to fraction form
   1,103.96/1,523.52 = 631.88/x
3. Step 3: Cross multiply
   1,103.96x = 1,523.52 × 631.88
4. Step 4: Simplify right side
   1,103.96x = 962,681.82
5. Step 5: Solve for x
   x = 962,681.82/1,103.96
6. Step 6: Final answer
   x = 872.03