Finding the Fourth Proportional to 2,161.52, 2,985.58 and 1,951.59

Step by Step Solution

1. Step 1: Write the proportion equation
   2,161.52 : 2,985.58 = 1,951.59 : x
2. Step 2: Convert to fraction form
   2,161.52/2,985.58 = 1,951.59/x
3. Step 3: Cross multiply
   2,161.52x = 2,985.58 × 1,951.59
4. Step 4: Simplify right side
   2,161.52x = 5,826,628.07
5. Step 5: Solve for x
   x = 5,826,628.07/2,161.52
6. Step 6: Final answer
   x = 2,695.62