Finding the Fourth Proportional to 2,055.20, 3,089.62 and 1,903.01

Step by Step Solution

1. Step 1: Write the proportion equation
   2,055.20 : 3,089.62 = 1,903.01 : x
2. Step 2: Convert to fraction form
   2,055.20/3,089.62 = 1,903.01/x
3. Step 3: Cross multiply
   2,055.20x = 3,089.62 × 1,903.01
4. Step 4: Simplify right side
   2,055.20x = 5,879,577.76
5. Step 5: Solve for x
   x = 5,879,577.76/2,055.20
6. Step 6: Final answer
   x = 2,860.83