Finding the Fourth Proportional to 2,312.52, 3,191.24 and 1,264.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,312.52 : 3,191.24 = 1,264.56 : x
2. Step 2: Convert to fraction form
   2,312.52/3,191.24 = 1,264.56/x
3. Step 3: Cross multiply
   2,312.52x = 3,191.24 × 1,264.56
4. Step 4: Simplify right side
   2,312.52x = 4,035,514.45
5. Step 5: Solve for x
   x = 4,035,514.45/2,312.52
6. Step 6: Final answer
   x = 1,745.07