Finding the Fourth Proportional to 2,155.60, 2,983.27 and 2,103.83

Step by Step Solution

1. Step 1: Write the proportion equation
   2,155.60 : 2,983.27 = 2,103.83 : x
2. Step 2: Convert to fraction form
   2,155.60/2,983.27 = 2,103.83/x
3. Step 3: Cross multiply
   2,155.60x = 2,983.27 × 2,103.83
4. Step 4: Simplify right side
   2,155.60x = 6,276,302.19
5. Step 5: Solve for x
   x = 6,276,302.19/2,155.60
6. Step 6: Final answer
   x = 2,911.63