Finding the Fourth Proportional to 2,658.72, 3,669.52 and 1,994.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,658.72 : 3,669.52 = 1,994.56 : x
2. Step 2: Convert to fraction form
   2,658.72/3,669.52 = 1,994.56/x
3. Step 3: Cross multiply
   2,658.72x = 3,669.52 × 1,994.56
4. Step 4: Simplify right side
   2,658.72x = 7,319,077.81
5. Step 5: Solve for x
   x = 7,319,077.81/2,658.72
6. Step 6: Final answer
   x = 2,752.86