Finding the Fourth Proportional to 1,525,520.26, 2,105,078.81 and 905,218.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,525,520.26 : 2,105,078.81 = 905,218.52 : x
2. Step 2: Convert to fraction form
   1,525,520.26/2,105,078.81 = 905,218.52/x
3. Step 3: Cross multiply
   1,525,520.26x = 2,105,078.81 × 905,218.52
4. Step 4: Simplify right side
   1,525,520.26x = 1,905,556,325,608.17
5. Step 5: Solve for x
   x = 1,905,556,325,608.17/1,525,520.26
6. Step 6: Final answer
   x = 1,249,118.99