Finding the Fourth Proportional to 3,443.02, 4,742.67 and 2,778.01

Step by Step Solution

1. Step 1: Write the proportion equation
   3,443.02 : 4,742.67 = 2,778.01 : x
2. Step 2: Convert to fraction form
   3,443.02/4,742.67 = 2,778.01/x
3. Step 3: Cross multiply
   3,443.02x = 4,742.67 × 2,778.01
4. Step 4: Simplify right side
   3,443.02x = 13,175,184.69
5. Step 5: Solve for x
   x = 13,175,184.69/3,443.02
6. Step 6: Final answer
   x = 3,826.64