Finding the Fourth Proportional to 2,116.86, 3,176.37 and 1,007.53

Step by Step Solution

1. Step 1: Write the proportion equation
   2,116.86 : 3,176.37 = 1,007.53 : x
2. Step 2: Convert to fraction form
   2,116.86/3,176.37 = 1,007.53/x
3. Step 3: Cross multiply
   2,116.86x = 3,176.37 × 1,007.53
4. Step 4: Simplify right side
   2,116.86x = 3,200,291.89
5. Step 5: Solve for x
   x = 3,200,291.89/2,116.86
6. Step 6: Final answer
   x = 1,511.81