Finding the Fourth Proportional to 1,107.06, 1,527.89 and 635.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,107.06 : 1,527.89 = 635.10 : x
2. Step 2: Convert to fraction form
   1,107.06/1,527.89 = 635.10/x
3. Step 3: Cross multiply
   1,107.06x = 1,527.89 × 635.10
4. Step 4: Simplify right side
   1,107.06x = 970,362.94
5. Step 5: Solve for x
   x = 970,362.94/1,107.06
6. Step 6: Final answer
   x = 876.52