Finding the Fourth Proportional to 1,667.82, 2,300.40 and 1,274.16

Step by Step Solution

1. Step 1: Write the proportion equation
   1,667.82 : 2,300.40 = 1,274.16 : x
2. Step 2: Convert to fraction form
   1,667.82/2,300.40 = 1,274.16/x
3. Step 3: Cross multiply
   1,667.82x = 2,300.40 × 1,274.16
4. Step 4: Simplify right side
   1,667.82x = 2,931,077.66
5. Step 5: Solve for x
   x = 2,931,077.66/1,667.82
6. Step 6: Final answer
   x = 1,757.43