Finding the Fourth Proportional to 1,419,818.72, 2,128,465.08 and 521,054.73

Step by Step Solution

1. Step 1: Write the proportion equation
   1,419,818.72 : 2,128,465.08 = 521,054.73 : x
2. Step 2: Convert to fraction form
   1,419,818.72/2,128,465.08 = 521,054.73/x
3. Step 3: Cross multiply
   1,419,818.72x = 2,128,465.08 × 521,054.73
4. Step 4: Simplify right side
   1,419,818.72x = 1,109,046,797,573.83
5. Step 5: Solve for x
   x = 1,109,046,797,573.83/1,419,818.72
6. Step 6: Final answer
   x = 781,118.59