Finding the Fourth Proportional to 2,081,667.20, 2,872,627.20 and 1,176,229.76

Step by Step Solution

1. Step 1: Write the proportion equation
   2,081,667.20 : 2,872,627.20 = 1,176,229.76 : x
2. Step 2: Convert to fraction form
   2,081,667.20/2,872,627.20 = 1,176,229.76/x
3. Step 3: Cross multiply
   2,081,667.20x = 2,872,627.20 × 1,176,229.76
4. Step 4: Simplify right side
   2,081,667.20x = 3,378,869,602,025.47
5. Step 5: Solve for x
   x = 3,378,869,602,025.47/2,081,667.20
6. Step 6: Final answer
   x = 1,623,155.52