Finding the Fourth Proportional to 3,607.09, 5,429.78 and 2,574.25

Step by Step Solution

1. Step 1: Write the proportion equation
   3,607.09 : 5,429.78 = 2,574.25 : x
2. Step 2: Convert to fraction form
   3,607.09/5,429.78 = 2,574.25/x
3. Step 3: Cross multiply
   3,607.09x = 5,429.78 × 2,574.25
4. Step 4: Simplify right side
   3,607.09x = 13,977,611.17
5. Step 5: Solve for x
   x = 13,977,611.17/3,607.09
6. Step 6: Final answer
   x = 3,875.04