Finding the Fourth Proportional to 2,126.16, 3,184.56 and 1,152.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,126.16 : 3,184.56 = 1,152.72 : x
2. Step 2: Convert to fraction form
   2,126.16/3,184.56 = 1,152.72/x
3. Step 3: Cross multiply
   2,126.16x = 3,184.56 × 1,152.72
4. Step 4: Simplify right side
   2,126.16x = 3,670,906.00
5. Step 5: Solve for x
   x = 3,670,906.00/2,126.16
6. Step 6: Final answer
   x = 1,726.54