Finding the Fourth Proportional to 2,947.37, 4,068.12 and 1,688.83

Step by Step Solution

1. Step 1: Write the proportion equation
   2,947.37 : 4,068.12 = 1,688.83 : x
2. Step 2: Convert to fraction form
   2,947.37/4,068.12 = 1,688.83/x
3. Step 3: Cross multiply
   2,947.37x = 4,068.12 × 1,688.83
4. Step 4: Simplify right side
   2,947.37x = 6,870,363.10
5. Step 5: Solve for x
   x = 6,870,363.10/2,947.37
6. Step 6: Final answer
   x = 2,331.01