Finding the Fourth Proportional to 2,108.02, 3,160.50 and 1,011.76

Step by Step Solution

1. Step 1: Write the proportion equation
   2,108.02 : 3,160.50 = 1,011.76 : x
2. Step 2: Convert to fraction form
   2,108.02/3,160.50 = 1,011.76/x
3. Step 3: Cross multiply
   2,108.02x = 3,160.50 × 1,011.76
4. Step 4: Simplify right side
   2,108.02x = 3,197,667.48
5. Step 5: Solve for x
   x = 3,197,667.48/2,108.02
6. Step 6: Final answer
   x = 1,516.91