Finding the Fourth Proportional to 2,997.98, 4,474.76 and 2,813.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,997.98 : 4,474.76 = 2,813.30 : x
2. Step 2: Convert to fraction form
   2,997.98/4,474.76 = 2,813.30/x
3. Step 3: Cross multiply
   2,997.98x = 4,474.76 × 2,813.30
4. Step 4: Simplify right side
   2,997.98x = 12,588,842.31
5. Step 5: Solve for x
   x = 12,588,842.31/2,997.98
6. Step 6: Final answer
   x = 4,199.11