Finding the Fourth Proportional to 1,426,379.07, 2,139,700.56 and 515,788.83

Step by Step Solution

1. Step 1: Write the proportion equation
   1,426,379.07 : 2,139,700.56 = 515,788.83 : x
2. Step 2: Convert to fraction form
   1,426,379.07/2,139,700.56 = 515,788.83/x
3. Step 3: Cross multiply
   1,426,379.07x = 2,139,700.56 × 515,788.83
4. Step 4: Simplify right side
   1,426,379.07x = 1,103,633,648,392.74
5. Step 5: Solve for x
   x = 1,103,633,648,392.74/1,426,379.07
6. Step 6: Final answer
   x = 773,730.96