Finding the Fourth Proportional to 1,345,233.77, 1,855,372.83 and 861,843.89

Step by Step Solution

1. Step 1: Write the proportion equation
   1,345,233.77 : 1,855,372.83 = 861,843.89 : x
2. Step 2: Convert to fraction form
   1,345,233.77/1,855,372.83 = 861,843.89/x
3. Step 3: Cross multiply
   1,345,233.77x = 1,855,372.83 × 861,843.89
4. Step 4: Simplify right side
   1,345,233.77x = 1,599,041,727,930.64
5. Step 5: Solve for x
   x = 1,599,041,727,930.64/1,345,233.77
6. Step 6: Final answer
   x = 1,188,672.01