Finding the Fourth Proportional to 3,706.79, 5,559.17 and 1,856.54

Step by Step Solution

1. Step 1: Write the proportion equation
   3,706.79 : 5,559.17 = 1,856.54 : x
2. Step 2: Convert to fraction form
   3,706.79/5,559.17 = 1,856.54/x
3. Step 3: Cross multiply
   3,706.79x = 5,559.17 × 1,856.54
4. Step 4: Simplify right side
   3,706.79x = 10,320,826.09
5. Step 5: Solve for x
   x = 10,320,826.09/3,706.79
6. Step 6: Final answer
   x = 2,784.31