Finding the Fourth Proportional to 1,831.52, 2,748.23 and 1,312.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,831.52 : 2,748.23 = 1,312.56 : x
2. Step 2: Convert to fraction form
   1,831.52/2,748.23 = 1,312.56/x
3. Step 3: Cross multiply
   1,831.52x = 2,748.23 × 1,312.56
4. Step 4: Simplify right side
   1,831.52x = 3,607,210.21
5. Step 5: Solve for x
   x = 3,607,210.21/1,831.52
6. Step 6: Final answer
   x = 1,969.52