Finding the Fourth Proportional to 2,459.84, 3,393.62 and 1,620.98

Step by Step Solution

1. Step 1: Write the proportion equation
   2,459.84 : 3,393.62 = 1,620.98 : x
2. Step 2: Convert to fraction form
   2,459.84/3,393.62 = 1,620.98/x
3. Step 3: Cross multiply
   2,459.84x = 3,393.62 × 1,620.98
4. Step 4: Simplify right side
   2,459.84x = 5,500,990.15
5. Step 5: Solve for x
   x = 5,500,990.15/2,459.84
6. Step 6: Final answer
   x = 2,236.32