Finding the Fourth Proportional to 2,235.02, 3,081.93 and 1,637.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,235.02 : 3,081.93 = 1,637.78 : x
2. Step 2: Convert to fraction form
   2,235.02/3,081.93 = 1,637.78/x
3. Step 3: Cross multiply
   2,235.02x = 3,081.93 × 1,637.78
4. Step 4: Simplify right side
   2,235.02x = 5,047,523.32
5. Step 5: Solve for x
   x = 5,047,523.32/2,235.02
6. Step 6: Final answer
   x = 2,258.38