Finding the Fourth Proportional to 2,118.07, 3,173.14 and 1,889.29

Step by Step Solution

1. Step 1: Write the proportion equation
   2,118.07 : 3,173.14 = 1,889.29 : x
2. Step 2: Convert to fraction form
   2,118.07/3,173.14 = 1,889.29/x
3. Step 3: Cross multiply
   2,118.07x = 3,173.14 × 1,889.29
4. Step 4: Simplify right side
   2,118.07x = 5,994,981.67
5. Step 5: Solve for x
   x = 5,994,981.67/2,118.07
6. Step 6: Final answer
   x = 2,830.40