Finding the Fourth Proportional to 2,817,796.15, 3,888,556.71 and 1,528,636.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,817,796.15 : 3,888,556.71 = 1,528,636.78 : x
2. Step 2: Convert to fraction form
   2,817,796.15/3,888,556.71 = 1,528,636.78/x
3. Step 3: Cross multiply
   2,817,796.15x = 3,888,556.71 × 1,528,636.78
4. Step 4: Simplify right side
   2,817,796.15x = 5,944,190,808,021.79
5. Step 5: Solve for x
   x = 5,944,190,808,021.79/2,817,796.15
6. Step 6: Final answer
   x = 2,109,517.68