Finding the Fourth Proportional to 2,146.91, 3,222.18 and 1,173.69

Step by Step Solution

1. Step 1: Write the proportion equation
   2,146.91 : 3,222.18 = 1,173.69 : x
2. Step 2: Convert to fraction form
   2,146.91/3,222.18 = 1,173.69/x
3. Step 3: Cross multiply
   2,146.91x = 3,222.18 × 1,173.69
4. Step 4: Simplify right side
   2,146.91x = 3,781,840.44
5. Step 5: Solve for x
   x = 3,781,840.44/2,146.91
6. Step 6: Final answer
   x = 1,761.53