Finding the Fourth Proportional to 2,076.62, 3,112.22 and 1,811.76

Step by Step Solution

1. Step 1: Write the proportion equation
   2,076.62 : 3,112.22 = 1,811.76 : x
2. Step 2: Convert to fraction form
   2,076.62/3,112.22 = 1,811.76/x
3. Step 3: Cross multiply
   2,076.62x = 3,112.22 × 1,811.76
4. Step 4: Simplify right side
   2,076.62x = 5,638,595.71
5. Step 5: Solve for x
   x = 5,638,595.71/2,076.62
6. Step 6: Final answer
   x = 2,715.28