Finding the Fourth Proportional to 2,942.17, 4,069.20 and 2,892.96

Step by Step Solution

1. Step 1: Write the proportion equation
   2,942.17 : 4,069.20 = 2,892.96 : x
2. Step 2: Convert to fraction form
   2,942.17/4,069.20 = 2,892.96/x
3. Step 3: Cross multiply
   2,942.17x = 4,069.20 × 2,892.96
4. Step 4: Simplify right side
   2,942.17x = 11,772,032.83
5. Step 5: Solve for x
   x = 11,772,032.83/2,942.17
6. Step 6: Final answer
   x = 4,001.14