Finding the Fourth Proportional to 1,231,789.83, 1,687,523.88 and 1,185,736.32

Step by Step Solution

1. Step 1: Write the proportion equation
   1,231,789.83 : 1,687,523.88 = 1,185,736.32 : x
2. Step 2: Convert to fraction form
   1,231,789.83/1,687,523.88 = 1,185,736.32/x
3. Step 3: Cross multiply
   1,231,789.83x = 1,687,523.88 × 1,185,736.32
4. Step 4: Simplify right side
   1,231,789.83x = 2,000,958,353,160.07
5. Step 5: Solve for x
   x = 2,000,958,353,160.07/1,231,789.83
6. Step 6: Final answer
   x = 1,624,431.62