Finding the Fourth Proportional to 3,538.72, 5,272.52 and 3,340

Step by Step Solution

1. Step 1: Write the proportion equation
   3,538.72 : 5,272.52 = 3,340 : x
2. Step 2: Convert to fraction form
   3,538.72/5,272.52 = 3,340/x
3. Step 3: Cross multiply
   3,538.72x = 5,272.52 × 3,340
4. Step 4: Simplify right side
   3,538.72x = 17,610,216.80
5. Step 5: Solve for x
   x = 17,610,216.80/3,538.72
6. Step 6: Final answer
   x = 4,976.44