Finding the Fourth Proportional to 2,116.36, 3,176.76 and 1,192.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,116.36 : 3,176.76 = 1,192.72 : x
2. Step 2: Convert to fraction form
   2,116.36/3,176.76 = 1,192.72/x
3. Step 3: Cross multiply
   2,116.36x = 3,176.76 × 1,192.72
4. Step 4: Simplify right side
   2,116.36x = 3,788,985.19
5. Step 5: Solve for x
   x = 3,788,985.19/2,116.36
6. Step 6: Final answer
   x = 1,790.33