Finding the Fourth Proportional to 1,404.46, 1,937.89 and 880.19

Step by Step Solution

1. Step 1: Write the proportion equation
   1,404.46 : 1,937.89 = 880.19 : x
2. Step 2: Convert to fraction form
   1,404.46/1,937.89 = 880.19/x
3. Step 3: Cross multiply
   1,404.46x = 1,937.89 × 880.19
4. Step 4: Simplify right side
   1,404.46x = 1,705,711.40
5. Step 5: Solve for x
   x = 1,705,711.40/1,404.46
6. Step 6: Final answer
   x = 1,214.50