Finding the Fourth Proportional to 2,134.58, 2,947.17 and 1,338.23

Step by Step Solution

1. Step 1: Write the proportion equation
   2,134.58 : 2,947.17 = 1,338.23 : x
2. Step 2: Convert to fraction form
   2,134.58/2,947.17 = 1,338.23/x
3. Step 3: Cross multiply
   2,134.58x = 2,947.17 × 1,338.23
4. Step 4: Simplify right side
   2,134.58x = 3,943,991.31
5. Step 5: Solve for x
   x = 3,943,991.31/2,134.58
6. Step 6: Final answer
   x = 1,847.67