Finding the Fourth Proportional to 1,106.91, 1,527.46 and 634.81

Step by Step Solution

1. Step 1: Write the proportion equation
   1,106.91 : 1,527.46 = 634.81 : x
2. Step 2: Convert to fraction form
   1,106.91/1,527.46 = 634.81/x
3. Step 3: Cross multiply
   1,106.91x = 1,527.46 × 634.81
4. Step 4: Simplify right side
   1,106.91x = 969,646.88
5. Step 5: Solve for x
   x = 969,646.88/1,106.91
6. Step 6: Final answer
   x = 875.99