Finding the Fourth Proportional to 1,667.44, 2,299.80 and 1,275.76

Step by Step Solution

1. Step 1: Write the proportion equation
   1,667.44 : 2,299.80 = 1,275.76 : x
2. Step 2: Convert to fraction form
   1,667.44/2,299.80 = 1,275.76/x
3. Step 3: Cross multiply
   1,667.44x = 2,299.80 × 1,275.76
4. Step 4: Simplify right side
   1,667.44x = 2,933,992.85
5. Step 5: Solve for x
   x = 2,933,992.85/1,667.44
6. Step 6: Final answer
   x = 1,759.58