Finding the Fourth Proportional to 1,075.89, 1,484.75 and 634.05

Step by Step Solution

1. Step 1: Write the proportion equation
   1,075.89 : 1,484.75 = 634.05 : x
2. Step 2: Convert to fraction form
   1,075.89/1,484.75 = 634.05/x
3. Step 3: Cross multiply
   1,075.89x = 1,484.75 × 634.05
4. Step 4: Simplify right side
   1,075.89x = 941,402.57
5. Step 5: Solve for x
   x = 941,402.57/1,075.89
6. Step 6: Final answer
   x = 875.00