Finding the Fourth Proportional to 2,526.21, 3,789.86 and 1,228.41

Step by Step Solution

1. Step 1: Write the proportion equation
   2,526.21 : 3,789.86 = 1,228.41 : x
2. Step 2: Convert to fraction form
   2,526.21/3,789.86 = 1,228.41/x
3. Step 3: Cross multiply
   2,526.21x = 3,789.86 × 1,228.41
4. Step 4: Simplify right side
   2,526.21x = 4,655,495.78
5. Step 5: Solve for x
   x = 4,655,495.78/2,526.21
6. Step 6: Final answer
   x = 1,842.88