Finding the Fourth Proportional to 2,106.58, 3,158.91 and 1,011.46

Step by Step Solution

1. Step 1: Write the proportion equation
   2,106.58 : 3,158.91 = 1,011.46 : x
2. Step 2: Convert to fraction form
   2,106.58/3,158.91 = 1,011.46/x
3. Step 3: Cross multiply
   2,106.58x = 3,158.91 × 1,011.46
4. Step 4: Simplify right side
   2,106.58x = 3,195,111.11
5. Step 5: Solve for x
   x = 3,195,111.11/2,106.58
6. Step 6: Final answer
   x = 1,516.73