Finding the Fourth Proportional to 2,997.75, 4,141.98 and 2,156.79

Step by Step Solution

1. Step 1: Write the proportion equation
   2,997.75 : 4,141.98 = 2,156.79 : x
2. Step 2: Convert to fraction form
   2,997.75/4,141.98 = 2,156.79/x
3. Step 3: Cross multiply
   2,997.75x = 4,141.98 × 2,156.79
4. Step 4: Simplify right side
   2,997.75x = 8,933,381.04
5. Step 5: Solve for x
   x = 8,933,381.04/2,997.75
6. Step 6: Final answer
   x = 2,980.03