Finding the Fourth Proportional to 1,218.51, 1,826.04 and 943.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,218.51 : 1,826.04 = 943.31 : x
2. Step 2: Convert to fraction form
   1,218.51/1,826.04 = 943.31/x
3. Step 3: Cross multiply
   1,218.51x = 1,826.04 × 943.31
4. Step 4: Simplify right side
   1,218.51x = 1,722,529.89
5. Step 5: Solve for x
   x = 1,722,529.89/1,218.51
6. Step 6: Final answer
   x = 1,413.64