Finding the Fourth Proportional to 1,861,290.10, 2,568,181.89 and 1,086,569.32

Step by Step Solution

1. Step 1: Write the proportion equation
   1,861,290.10 : 2,568,181.89 = 1,086,569.32 : x
2. Step 2: Convert to fraction form
   1,861,290.10/2,568,181.89 = 1,086,569.32/x
3. Step 3: Cross multiply
   1,861,290.10x = 2,568,181.89 × 1,086,569.32
4. Step 4: Simplify right side
   1,861,290.10x = 2,790,507,637,012.71
5. Step 5: Solve for x
   x = 2,790,507,637,012.71/1,861,290.10
6. Step 6: Final answer
   x = 1,499,233.06