Finding the Fourth Proportional to 2,484.62, 3,428.94 and 1,643.86

Step by Step Solution

1. Step 1: Write the proportion equation
   2,484.62 : 3,428.94 = 1,643.86 : x
2. Step 2: Convert to fraction form
   2,484.62/3,428.94 = 1,643.86/x
3. Step 3: Cross multiply
   2,484.62x = 3,428.94 × 1,643.86
4. Step 4: Simplify right side
   2,484.62x = 5,636,697.31
5. Step 5: Solve for x
   x = 5,636,697.31/2,484.62
6. Step 6: Final answer
   x = 2,268.64