Finding the Fourth Proportional to 1,935.09, 2,895.42 and 1,155.51

Step by Step Solution

1. Step 1: Write the proportion equation
   1,935.09 : 2,895.42 = 1,155.51 : x
2. Step 2: Convert to fraction form
   1,935.09/2,895.42 = 1,155.51/x
3. Step 3: Cross multiply
   1,935.09x = 2,895.42 × 1,155.51
4. Step 4: Simplify right side
   1,935.09x = 3,345,686.76
5. Step 5: Solve for x
   x = 3,345,686.76/1,935.09
6. Step 6: Final answer
   x = 1,728.96