Finding the Fourth Proportional to 1,322,612.96, 1,823,492.72 and 856,637.78

Step by Step Solution

1. Step 1: Write the proportion equation
   1,322,612.96 : 1,823,492.72 = 856,637.78 : x
2. Step 2: Convert to fraction form
   1,322,612.96/1,823,492.72 = 856,637.78/x
3. Step 3: Cross multiply
   1,322,612.96x = 1,823,492.72 × 856,637.78
4. Step 4: Simplify right side
   1,322,612.96x = 1,562,072,748,531.09
5. Step 5: Solve for x
   x = 1,562,072,748,531.09/1,322,612.96
6. Step 6: Final answer
   x = 1,181,050.54