Finding the Fourth Proportional to 1,858.08, 2,563.91 and 1,111.89

Step by Step Solution

1. Step 1: Write the proportion equation
   1,858.08 : 2,563.91 = 1,111.89 : x
2. Step 2: Convert to fraction form
   1,858.08/2,563.91 = 1,111.89/x
3. Step 3: Cross multiply
   1,858.08x = 2,563.91 × 1,111.89
4. Step 4: Simplify right side
   1,858.08x = 2,850,780.33
5. Step 5: Solve for x
   x = 2,850,780.33/1,858.08
6. Step 6: Final answer
   x = 1,534.26