Finding the Fourth Proportional to 2,231,127.86, 3,078,869.74 and 1,212,510.74

Step by Step Solution

1. Step 1: Write the proportion equation
   2,231,127.86 : 3,078,869.74 = 1,212,510.74 : x
2. Step 2: Convert to fraction form
   2,231,127.86/3,078,869.74 = 1,212,510.74/x
3. Step 3: Cross multiply
   2,231,127.86x = 3,078,869.74 × 1,212,510.74
4. Step 4: Simplify right side
   2,231,127.86x = 3,733,162,608,385.38
5. Step 5: Solve for x
   x = 3,733,162,608,385.38/2,231,127.86
6. Step 6: Final answer
   x = 1,673,217.70