Finding the Fourth Proportional to 2,108.56, 2,910.75 and 1,362.88

Step by Step Solution

1. Step 1: Write the proportion equation
   2,108.56 : 2,910.75 = 1,362.88 : x
2. Step 2: Convert to fraction form
   2,108.56/2,910.75 = 1,362.88/x
3. Step 3: Cross multiply
   2,108.56x = 2,910.75 × 1,362.88
4. Step 4: Simplify right side
   2,108.56x = 3,967,002.96
5. Step 5: Solve for x
   x = 3,967,002.96/2,108.56
6. Step 6: Final answer
   x = 1,881.38