Finding the Fourth Proportional to 1,254.18, 1,727.82 and 880.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,254.18 : 1,727.82 = 880.50 : x
2. Step 2: Convert to fraction form
   1,254.18/1,727.82 = 880.50/x
3. Step 3: Cross multiply
   1,254.18x = 1,727.82 × 880.50
4. Step 4: Simplify right side
   1,254.18x = 1,521,345.51
5. Step 5: Solve for x
   x = 1,521,345.51/1,254.18
6. Step 6: Final answer
   x = 1,213.02