Finding the Fourth Proportional to 2,111,288.83, 3,166,888.96 and 513,860.83

Step by Step Solution

1. Step 1: Write the proportion equation
   2,111,288.83 : 3,166,888.96 = 513,860.83 : x
2. Step 2: Convert to fraction form
   2,111,288.83/3,166,888.96 = 513,860.83/x
3. Step 3: Cross multiply
   2,111,288.83x = 3,166,888.96 × 513,860.83
4. Step 4: Simplify right side
   2,111,288.83x = 1,627,340,189,503.44
5. Step 5: Solve for x
   x = 1,627,340,189,503.44/2,111,288.83
6. Step 6: Final answer
   x = 770,780.47