Finding the Fourth Proportional to 2,099.22, 2,897.04 and 1,167.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,099.22 : 2,897.04 = 1,167.72 : x
2. Step 2: Convert to fraction form
   2,099.22/2,897.04 = 1,167.72/x
3. Step 3: Cross multiply
   2,099.22x = 2,897.04 × 1,167.72
4. Step 4: Simplify right side
   2,099.22x = 3,382,931.55
5. Step 5: Solve for x
   x = 3,382,931.55/2,099.22
6. Step 6: Final answer
   x = 1,611.52