Finding the Fourth Proportional to 1,374.49, 2,061.27 and 880.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,374.49 : 2,061.27 = 880.18 : x
2. Step 2: Convert to fraction form
   1,374.49/2,061.27 = 880.18/x
3. Step 3: Cross multiply
   1,374.49x = 2,061.27 × 880.18
4. Step 4: Simplify right side
   1,374.49x = 1,814,288.63
5. Step 5: Solve for x
   x = 1,814,288.63/1,374.49
6. Step 6: Final answer
   x = 1,319.97