Finding the Fourth Proportional to 2,591.94, 3,881.84 and 1,812.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,591.94 : 3,881.84 = 1,812.72 : x
2. Step 2: Convert to fraction form
   2,591.94/3,881.84 = 1,812.72/x
3. Step 3: Cross multiply
   2,591.94x = 3,881.84 × 1,812.72
4. Step 4: Simplify right side
   2,591.94x = 7,036,689.00
5. Step 5: Solve for x
   x = 7,036,689.00/2,591.94
6. Step 6: Final answer
   x = 2,714.83