Finding the Fourth Proportional to 1,886.85, 2,826.59 and 1,235.61

Step by Step Solution

1. Step 1: Write the proportion equation
   1,886.85 : 2,826.59 = 1,235.61 : x
2. Step 2: Convert to fraction form
   1,886.85/2,826.59 = 1,235.61/x
3. Step 3: Cross multiply
   1,886.85x = 2,826.59 × 1,235.61
4. Step 4: Simplify right side
   1,886.85x = 3,492,562.87
5. Step 5: Solve for x
   x = 3,492,562.87/1,886.85
6. Step 6: Final answer
   x = 1,851.00