Finding the Fourth Proportional to 1,889.37, 2,607.33 and 1,143.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,889.37 : 2,607.33 = 1,143.18 : x
2. Step 2: Convert to fraction form
   1,889.37/2,607.33 = 1,143.18/x
3. Step 3: Cross multiply
   1,889.37x = 2,607.33 × 1,143.18
4. Step 4: Simplify right side
   1,889.37x = 2,980,647.51
5. Step 5: Solve for x
   x = 2,980,647.51/1,889.37
6. Step 6: Final answer
   x = 1,577.59