Finding the Fourth Proportional to 3,690.50, 5,094.71 and 2,557.03

Step by Step Solution

1. Step 1: Write the proportion equation
   3,690.50 : 5,094.71 = 2,557.03 : x
2. Step 2: Convert to fraction form
   3,690.50/5,094.71 = 2,557.03/x
3. Step 3: Cross multiply
   3,690.50x = 5,094.71 × 2,557.03
4. Step 4: Simplify right side
   3,690.50x = 13,027,355.80
5. Step 5: Solve for x
   x = 13,027,355.80/3,690.50
6. Step 6: Final answer
   x = 3,529.97