Finding the Fourth Proportional to 1,075.18, 1,483.89 and 633.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,075.18 : 1,483.89 = 633.12 : x
2. Step 2: Convert to fraction form
   1,075.18/1,483.89 = 633.12/x
3. Step 3: Cross multiply
   1,075.18x = 1,483.89 × 633.12
4. Step 4: Simplify right side
   1,075.18x = 939,477.27
5. Step 5: Solve for x
   x = 939,477.27/1,075.18
6. Step 6: Final answer
   x = 873.79