Finding the Fourth Proportional to 2,516.30, 3,771.75 and 1,055.06

Step by Step Solution

1. Step 1: Write the proportion equation
   2,516.30 : 3,771.75 = 1,055.06 : x
2. Step 2: Convert to fraction form
   2,516.30/3,771.75 = 1,055.06/x
3. Step 3: Cross multiply
   2,516.30x = 3,771.75 × 1,055.06
4. Step 4: Simplify right side
   2,516.30x = 3,979,422.56
5. Step 5: Solve for x
   x = 3,979,422.56/2,516.30
6. Step 6: Final answer
   x = 1,581.46