Finding the Fourth Proportional to 2,059.56, 3,099.78 and 1,858.32

Step by Step Solution

1. Step 1: Write the proportion equation
   2,059.56 : 3,099.78 = 1,858.32 : x
2. Step 2: Convert to fraction form
   2,059.56/3,099.78 = 1,858.32/x
3. Step 3: Cross multiply
   2,059.56x = 3,099.78 × 1,858.32
4. Step 4: Simplify right side
   2,059.56x = 5,760,383.17
5. Step 5: Solve for x
   x = 5,760,383.17/2,059.56
6. Step 6: Final answer
   x = 2,796.90