Finding the Fourth Proportional to 2,160.98, 3,219.71 and 2,019.53

Step by Step Solution

1. Step 1: Write the proportion equation
   2,160.98 : 3,219.71 = 2,019.53 : x
2. Step 2: Convert to fraction form
   2,160.98/3,219.71 = 2,019.53/x
3. Step 3: Cross multiply
   2,160.98x = 3,219.71 × 2,019.53
4. Step 4: Simplify right side
   2,160.98x = 6,502,274.74
5. Step 5: Solve for x
   x = 6,502,274.74/2,160.98
6. Step 6: Final answer
   x = 3,008.95