Finding the Fourth Proportional to 2,259,155.72, 3,117,638.58 and 1,226,665.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,259,155.72 : 3,117,638.58 = 1,226,665.50 : x
2. Step 2: Convert to fraction form
   2,259,155.72/3,117,638.58 = 1,226,665.50/x
3. Step 3: Cross multiply
   2,259,155.72x = 3,117,638.58 × 1,226,665.50
4. Step 4: Simplify right side
   2,259,155.72x = 3,824,299,691,711.86
5. Step 5: Solve for x
   x = 3,824,299,691,711.86/2,259,155.72
6. Step 6: Final answer
   x = 1,692,800.40