Finding the Fourth Proportional to 2,099.58, 2,896.56 and 1,260.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,099.58 : 2,896.56 = 1,260.30 : x
2. Step 2: Convert to fraction form
   2,099.58/2,896.56 = 1,260.30/x
3. Step 3: Cross multiply
   2,099.58x = 2,896.56 × 1,260.30
4. Step 4: Simplify right side
   2,099.58x = 3,650,534.57
5. Step 5: Solve for x
   x = 3,650,534.57/2,099.58
6. Step 6: Final answer
   x = 1,738.70