Finding the Fourth Proportional to 1,076.06, 1,484.79 and 634.05

Step by Step Solution

1. Step 1: Write the proportion equation
   1,076.06 : 1,484.79 = 634.05 : x
2. Step 2: Convert to fraction form
   1,076.06/1,484.79 = 634.05/x
3. Step 3: Cross multiply
   1,076.06x = 1,484.79 × 634.05
4. Step 4: Simplify right side
   1,076.06x = 941,428.72
5. Step 5: Solve for x
   x = 941,428.72/1,076.06
6. Step 6: Final answer
   x = 874.88