Finding the Fourth Proportional to 4,388.61, 6,057.72 and 3,494.00

Step by Step Solution

1. Step 1: Write the proportion equation
   4,388.61 : 6,057.72 = 3,494.00 : x
2. Step 2: Convert to fraction form
   4,388.61/6,057.72 = 3,494.00/x
3. Step 3: Cross multiply
   4,388.61x = 6,057.72 × 3,494.00
4. Step 4: Simplify right side
   4,388.61x = 21,165,643.39
5. Step 5: Solve for x
   x = 21,165,643.39/4,388.61
6. Step 6: Final answer
   x = 4,822.86