Finding the Fourth Proportional to 1,780.88, 2,667.44 and 1,469.24

Step by Step Solution

1. Step 1: Write the proportion equation
   1,780.88 : 2,667.44 = 1,469.24 : x
2. Step 2: Convert to fraction form
   1,780.88/2,667.44 = 1,469.24/x
3. Step 3: Cross multiply
   1,780.88x = 2,667.44 × 1,469.24
4. Step 4: Simplify right side
   1,780.88x = 3,919,109.55
5. Step 5: Solve for x
   x = 3,919,109.55/1,780.88
6. Step 6: Final answer
   x = 2,200.66