Finding the Fourth Proportional to 2,613.84, 3,608.82 and 1,620.58

Step by Step Solution

1. Step 1: Write the proportion equation
   2,613.84 : 3,608.82 = 1,620.58 : x
2. Step 2: Convert to fraction form
   2,613.84/3,608.82 = 1,620.58/x
3. Step 3: Cross multiply
   2,613.84x = 3,608.82 × 1,620.58
4. Step 4: Simplify right side
   2,613.84x = 5,848,381.52
5. Step 5: Solve for x
   x = 5,848,381.52/2,613.84
6. Step 6: Final answer
   x = 2,237.47