Finding the Fourth Proportional to 1,216.89, 1,826.01 and 1,124.01

Step by Step Solution

1. Step 1: Write the proportion equation
   1,216.89 : 1,826.01 = 1,124.01 : x
2. Step 2: Convert to fraction form
   1,216.89/1,826.01 = 1,124.01/x
3. Step 3: Cross multiply
   1,216.89x = 1,826.01 × 1,124.01
4. Step 4: Simplify right side
   1,216.89x = 2,052,453.50
5. Step 5: Solve for x
   x = 2,052,453.50/1,216.89
6. Step 6: Final answer
   x = 1,686.64