Finding the Fourth Proportional to 2,039.60, 2,815.16 and 1,155.93

Step by Step Solution

1. Step 1: Write the proportion equation
   2,039.60 : 2,815.16 = 1,155.93 : x
2. Step 2: Convert to fraction form
   2,039.60/2,815.16 = 1,155.93/x
3. Step 3: Cross multiply
   2,039.60x = 2,815.16 × 1,155.93
4. Step 4: Simplify right side
   2,039.60x = 3,254,127.90
5. Step 5: Solve for x
   x = 3,254,127.90/2,039.60
6. Step 6: Final answer
   x = 1,595.47