Finding the Fourth Proportional to 1,224.82, 1,837.72 and 575.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,224.82 : 1,837.72 = 575.10 : x
2. Step 2: Convert to fraction form
   1,224.82/1,837.72 = 575.10/x
3. Step 3: Cross multiply
   1,224.82x = 1,837.72 × 575.10
4. Step 4: Simplify right side
   1,224.82x = 1,056,872.77
5. Step 5: Solve for x
   x = 1,056,872.77/1,224.82
6. Step 6: Final answer
   x = 862.88