Finding the Fourth Proportional to 2,064.49, 3,091.68 and 1,864.59

Step by Step Solution

1. Step 1: Write the proportion equation
   2,064.49 : 3,091.68 = 1,864.59 : x
2. Step 2: Convert to fraction form
   2,064.49/3,091.68 = 1,864.59/x
3. Step 3: Cross multiply
   2,064.49x = 3,091.68 × 1,864.59
4. Step 4: Simplify right side
   2,064.49x = 5,764,715.61
5. Step 5: Solve for x
   x = 5,764,715.61/2,064.49
6. Step 6: Final answer
   x = 2,792.32