Finding the Fourth Proportional to 2,189.06, 3,285.93 and 1,037.18

Step by Step Solution

1. Step 1: Write the proportion equation
   2,189.06 : 3,285.93 = 1,037.18 : x
2. Step 2: Convert to fraction form
   2,189.06/3,285.93 = 1,037.18/x
3. Step 3: Cross multiply
   2,189.06x = 3,285.93 × 1,037.18
4. Step 4: Simplify right side
   2,189.06x = 3,408,100.88
5. Step 5: Solve for x
   x = 3,408,100.88/2,189.06
6. Step 6: Final answer
   x = 1,556.88