Finding the Fourth Proportional to 2,135.16, 2,947.32 and 1,662.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,135.16 : 2,947.32 = 1,662.12 : x
2. Step 2: Convert to fraction form
   2,135.16/2,947.32 = 1,662.12/x
3. Step 3: Cross multiply
   2,135.16x = 2,947.32 × 1,662.12
4. Step 4: Simplify right side
   2,135.16x = 4,898,799.52
5. Step 5: Solve for x
   x = 4,898,799.52/2,135.16
6. Step 6: Final answer
   x = 2,294.35