Finding the Fourth Proportional to 1,101.82, 1,521.04 and 635.98

Step by Step Solution

1. Step 1: Write the proportion equation
   1,101.82 : 1,521.04 = 635.98 : x
2. Step 2: Convert to fraction form
   1,101.82/1,521.04 = 635.98/x
3. Step 3: Cross multiply
   1,101.82x = 1,521.04 × 635.98
4. Step 4: Simplify right side
   1,101.82x = 967,351.02
5. Step 5: Solve for x
   x = 967,351.02/1,101.82
6. Step 6: Final answer
   x = 877.96