Finding the Fourth Proportional to 1,667.93, 2,499.54 and 1,276.41

Step by Step Solution

1. Step 1: Write the proportion equation
   1,667.93 : 2,499.54 = 1,276.41 : x
2. Step 2: Convert to fraction form
   1,667.93/2,499.54 = 1,276.41/x
3. Step 3: Cross multiply
   1,667.93x = 2,499.54 × 1,276.41
4. Step 4: Simplify right side
   1,667.93x = 3,190,437.85
5. Step 5: Solve for x
   x = 3,190,437.85/1,667.93
6. Step 6: Final answer
   x = 1,912.82