Finding the Fourth Proportional to 1,075.71, 1,484.78 and 633.86

Step by Step Solution

1. Step 1: Write the proportion equation
   1,075.71 : 1,484.78 = 633.86 : x
2. Step 2: Convert to fraction form
   1,075.71/1,484.78 = 633.86/x
3. Step 3: Cross multiply
   1,075.71x = 1,484.78 × 633.86
4. Step 4: Simplify right side
   1,075.71x = 941,142.65
5. Step 5: Solve for x
   x = 941,142.65/1,075.71
6. Step 6: Final answer
   x = 874.90