Finding the Fourth Proportional to 2,109.52, 3,161.40 and 1,563.76

Step by Step Solution

1. Step 1: Write the proportion equation
   2,109.52 : 3,161.40 = 1,563.76 : x
2. Step 2: Convert to fraction form
   2,109.52/3,161.40 = 1,563.76/x
3. Step 3: Cross multiply
   2,109.52x = 3,161.40 × 1,563.76
4. Step 4: Simplify right side
   2,109.52x = 4,943,670.86
5. Step 5: Solve for x
   x = 4,943,670.86/2,109.52
6. Step 6: Final answer
   x = 2,343.51