Finding the Fourth Proportional to 1,050.02, 1,574.98 and 280.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,050.02 : 1,574.98 = 280.50 : x
2. Step 2: Convert to fraction form
   1,050.02/1,574.98 = 280.50/x
3. Step 3: Cross multiply
   1,050.02x = 1,574.98 × 280.50
4. Step 4: Simplify right side
   1,050.02x = 441,781.89
5. Step 5: Solve for x
   x = 441,781.89/1,050.02
6. Step 6: Final answer
   x = 420.74