Finding the Fourth Proportional to 2,111.86, 3,167.61 and 651.02

Step by Step Solution

1. Step 1: Write the proportion equation
   2,111.86 : 3,167.61 = 651.02 : x
2. Step 2: Convert to fraction form
   2,111.86/3,167.61 = 651.02/x
3. Step 3: Cross multiply
   2,111.86x = 3,167.61 × 651.02
4. Step 4: Simplify right side
   2,111.86x = 2,062,177.00
5. Step 5: Solve for x
   x = 2,062,177.00/2,111.86
6. Step 6: Final answer
   x = 976.48