Finding the Fourth Proportional to 2,231,168.76, 3,079,036.80 and 1,212,573.60

Step by Step Solution

1. Step 1: Write the proportion equation
   2,231,168.76 : 3,079,036.80 = 1,212,573.60 : x
2. Step 2: Convert to fraction form
   2,231,168.76/3,079,036.80 = 1,212,573.60/x
3. Step 3: Cross multiply
   2,231,168.76x = 3,079,036.80 × 1,212,573.60
4. Step 4: Simplify right side
   2,231,168.76x = 3,733,558,737,108.48
5. Step 5: Solve for x
   x = 3,733,558,737,108.48/2,231,168.76
6. Step 6: Final answer
   x = 1,673,364.56