Finding the Fourth Proportional to 2,118.92, 3,175.29 and 1,858.28

Step by Step Solution

1. Step 1: Write the proportion equation
   2,118.92 : 3,175.29 = 1,858.28 : x
2. Step 2: Convert to fraction form
   2,118.92/3,175.29 = 1,858.28/x
3. Step 3: Cross multiply
   2,118.92x = 3,175.29 × 1,858.28
4. Step 4: Simplify right side
   2,118.92x = 5,900,562.02
5. Step 5: Solve for x
   x = 5,900,562.02/2,118.92
6. Step 6: Final answer
   x = 2,784.71