Finding the Fourth Proportional to 1,225.10, 1,837.25 and 875.49

Step by Step Solution

1. Step 1: Write the proportion equation
   1,225.10 : 1,837.25 = 875.49 : x
2. Step 2: Convert to fraction form
   1,225.10/1,837.25 = 875.49/x
3. Step 3: Cross multiply
   1,225.10x = 1,837.25 × 875.49
4. Step 4: Simplify right side
   1,225.10x = 1,608,486.02
5. Step 5: Solve for x
   x = 1,608,486.02/1,225.10
6. Step 6: Final answer
   x = 1,312.94