Finding the Fourth Proportional to 2,538.72, 3,503.16 and 1,653.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,538.72 : 3,503.16 = 1,653.12 : x
2. Step 2: Convert to fraction form
   2,538.72/3,503.16 = 1,653.12/x
3. Step 3: Cross multiply
   2,538.72x = 3,503.16 × 1,653.12
4. Step 4: Simplify right side
   2,538.72x = 5,791,143.86
5. Step 5: Solve for x
   x = 5,791,143.86/2,538.72
6. Step 6: Final answer
   x = 2,281.13