Finding the Fourth Proportional to 2,054.81, 3,085.90 and 1,889.98

Step by Step Solution

1. Step 1: Write the proportion equation
   2,054.81 : 3,085.90 = 1,889.98 : x
2. Step 2: Convert to fraction form
   2,054.81/3,085.90 = 1,889.98/x
3. Step 3: Cross multiply
   2,054.81x = 3,085.90 × 1,889.98
4. Step 4: Simplify right side
   2,054.81x = 5,832,273.85
5. Step 5: Solve for x
   x = 5,832,273.85/2,054.81
6. Step 6: Final answer
   x = 2,838.36