Finding the Fourth Proportional to 2,099.80, 2,899.83 and 1,730.44

Step by Step Solution

1. Step 1: Write the proportion equation
   2,099.80 : 2,899.83 = 1,730.44 : x
2. Step 2: Convert to fraction form
   2,099.80/2,899.83 = 1,730.44/x
3. Step 3: Cross multiply
   2,099.80x = 2,899.83 × 1,730.44
4. Step 4: Simplify right side
   2,099.80x = 5,017,981.83
5. Step 5: Solve for x
   x = 5,017,981.83/2,099.80
6. Step 6: Final answer
   x = 2,389.74