Finding the Fourth Proportional to 2,162.94, 2,985.56 and 1,603.23

Step by Step Solution

1. Step 1: Write the proportion equation
   2,162.94 : 2,985.56 = 1,603.23 : x
2. Step 2: Convert to fraction form
   2,162.94/2,985.56 = 1,603.23/x
3. Step 3: Cross multiply
   2,162.94x = 2,985.56 × 1,603.23
4. Step 4: Simplify right side
   2,162.94x = 4,786,516.41
5. Step 5: Solve for x
   x = 4,786,516.41/2,162.94
6. Step 6: Final answer
   x = 2,212.97