Finding the Fourth Proportional to 1,822.36, 2,516.04 and 1,201.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,822.36 : 2,516.04 = 1,201.72 : x
2. Step 2: Convert to fraction form
   1,822.36/2,516.04 = 1,201.72/x
3. Step 3: Cross multiply
   1,822.36x = 2,516.04 × 1,201.72
4. Step 4: Simplify right side
   1,822.36x = 3,023,575.59
5. Step 5: Solve for x
   x = 3,023,575.59/1,822.36
6. Step 6: Final answer
   x = 1,659.15