Finding the Fourth Proportional to 2,091.94, 3,124.07 and 1,800.34

Step by Step Solution

1. Step 1: Write the proportion equation
   2,091.94 : 3,124.07 = 1,800.34 : x
2. Step 2: Convert to fraction form
   2,091.94/3,124.07 = 1,800.34/x
3. Step 3: Cross multiply
   2,091.94x = 3,124.07 × 1,800.34
4. Step 4: Simplify right side
   2,091.94x = 5,624,388.18
5. Step 5: Solve for x
   x = 5,624,388.18/2,091.94
6. Step 6: Final answer
   x = 2,688.60