Finding the Fourth Proportional to 2,142,928.23, 3,214,410.38 and 545,491.59

Step by Step Solution

1. Step 1: Write the proportion equation
   2,142,928.23 : 3,214,410.38 = 545,491.59 : x
2. Step 2: Convert to fraction form
   2,142,928.23/3,214,410.38 = 545,491.59/x
3. Step 3: Cross multiply
   2,142,928.23x = 3,214,410.38 × 545,491.59
4. Step 4: Simplify right side
   2,142,928.23x = 1,753,433,826,371.25
5. Step 5: Solve for x
   x = 1,753,433,826,371.25/2,142,928.23
6. Step 6: Final answer
   x = 818,241.97