Finding the Fourth Proportional to 2,124.48, 3,188.55 and 826.86

Step by Step Solution

1. Step 1: Write the proportion equation
   2,124.48 : 3,188.55 = 826.86 : x
2. Step 2: Convert to fraction form
   2,124.48/3,188.55 = 826.86/x
3. Step 3: Cross multiply
   2,124.48x = 3,188.55 × 826.86
4. Step 4: Simplify right side
   2,124.48x = 2,636,480.32
5. Step 5: Solve for x
   x = 2,636,480.32/2,124.48
6. Step 6: Final answer
   x = 1,241.00