Finding the Fourth Proportional to 2,607.62, 3,905.52 and 1,831.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,607.62 : 3,905.52 = 1,831.10 : x
2. Step 2: Convert to fraction form
   2,607.62/3,905.52 = 1,831.10/x
3. Step 3: Cross multiply
   2,607.62x = 3,905.52 × 1,831.10
4. Step 4: Simplify right side
   2,607.62x = 7,151,397.67
5. Step 5: Solve for x
   x = 7,151,397.67/2,607.62
6. Step 6: Final answer
   x = 2,742.50