Finding the Fourth Proportional to 2,138.01, 2,947.77 and 1,784.43

Step by Step Solution

1. Step 1: Write the proportion equation
   2,138.01 : 2,947.77 = 1,784.43 : x
2. Step 2: Convert to fraction form
   2,138.01/2,947.77 = 1,784.43/x
3. Step 3: Cross multiply
   2,138.01x = 2,947.77 × 1,784.43
4. Step 4: Simplify right side
   2,138.01x = 5,260,089.22
5. Step 5: Solve for x
   x = 5,260,089.22/2,138.01
6. Step 6: Final answer
   x = 2,460.27