Finding the Fourth Proportional to 1,111.98, 1,534.65 and 633.54

Step by Step Solution

1. Step 1: Write the proportion equation
   1,111.98 : 1,534.65 = 633.54 : x
2. Step 2: Convert to fraction form
   1,111.98/1,534.65 = 633.54/x
3. Step 3: Cross multiply
   1,111.98x = 1,534.65 × 633.54
4. Step 4: Simplify right side
   1,111.98x = 972,262.16
5. Step 5: Solve for x
   x = 972,262.16/1,111.98
6. Step 6: Final answer
   x = 874.35