Finding the Fourth Proportional to 1,274.64, 1,908.72 and 1,167.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,274.64 : 1,908.72 = 1,167.72 : x
2. Step 2: Convert to fraction form
   1,274.64/1,908.72 = 1,167.72/x
3. Step 3: Cross multiply
   1,274.64x = 1,908.72 × 1,167.72
4. Step 4: Simplify right side
   1,274.64x = 2,228,850.52
5. Step 5: Solve for x
   x = 2,228,850.52/1,274.64
6. Step 6: Final answer
   x = 1,748.61