Finding the Fourth Proportional to 1,074.87, 1,483.72 and 633.02

Step by Step Solution

1. Step 1: Write the proportion equation
   1,074.87 : 1,483.72 = 633.02 : x
2. Step 2: Convert to fraction form
   1,074.87/1,483.72 = 633.02/x
3. Step 3: Cross multiply
   1,074.87x = 1,483.72 × 633.02
4. Step 4: Simplify right side
   1,074.87x = 939,215.43
5. Step 5: Solve for x
   x = 939,215.43/1,074.87
6. Step 6: Final answer
   x = 873.79