Finding the Fourth Proportional to 1,931.30, 2,662.72 and 1,267

Step by Step Solution

1. Step 1: Write the proportion equation
   1,931.30 : 2,662.72 = 1,267 : x
2. Step 2: Convert to fraction form
   1,931.30/2,662.72 = 1,267/x
3. Step 3: Cross multiply
   1,931.30x = 2,662.72 × 1,267
4. Step 4: Simplify right side
   1,931.30x = 3,373,666.24
5. Step 5: Solve for x
   x = 3,373,666.24/1,931.30
6. Step 6: Final answer
   x = 1,746.84