Finding the Fourth Proportional to 2,815,632.72, 3,885,522.48 and 1,591,917.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,815,632.72 : 3,885,522.48 = 1,591,917.12 : x
2. Step 2: Convert to fraction form
   2,815,632.72/3,885,522.48 = 1,591,917.12/x
3. Step 3: Cross multiply
   2,815,632.72x = 3,885,522.48 × 1,591,917.12
4. Step 4: Simplify right side
   2,815,632.72x = 6,185,429,756,056.86
5. Step 5: Solve for x
   x = 6,185,429,756,056.86/2,815,632.72
6. Step 6: Final answer
   x = 2,196,816.98