Finding the Fourth Proportional to 2,516.10, 3,774.06 and 667.22

Step by Step Solution

1. Step 1: Write the proportion equation
   2,516.10 : 3,774.06 = 667.22 : x
2. Step 2: Convert to fraction form
   2,516.10/3,774.06 = 667.22/x
3. Step 3: Cross multiply
   2,516.10x = 3,774.06 × 667.22
4. Step 4: Simplify right side
   2,516.10x = 2,518,128.31
5. Step 5: Solve for x
   x = 2,518,128.31/2,516.10
6. Step 6: Final answer
   x = 1,000.81