Finding the Fourth Proportional to 3,123.77, 4,680.18 and 1,822.50

Step by Step Solution

1. Step 1: Write the proportion equation
   3,123.77 : 4,680.18 = 1,822.50 : x
2. Step 2: Convert to fraction form
   3,123.77/4,680.18 = 1,822.50/x
3. Step 3: Cross multiply
   3,123.77x = 4,680.18 × 1,822.50
4. Step 4: Simplify right side
   3,123.77x = 8,529,628.05
5. Step 5: Solve for x
   x = 8,529,628.05/3,123.77
6. Step 6: Final answer
   x = 2,730.56