Finding the Fourth Proportional to 1,322,618.96, 1,823,501.00 and 856,643.78

Step by Step Solution

1. Step 1: Write the proportion equation
   1,322,618.96 : 1,823,501.00 = 856,643.78 : x
2. Step 2: Convert to fraction form
   1,322,618.96/1,823,501.00 = 856,643.78/x
3. Step 3: Cross multiply
   1,322,618.96x = 1,823,501.00 × 856,643.78
4. Step 4: Simplify right side
   1,322,618.96x = 1,562,090,776,073.06
5. Step 5: Solve for x
   x = 1,562,090,776,073.06/1,322,618.96
6. Step 6: Final answer
   x = 1,181,058.82