Finding the Fourth Proportional to 1,205,738.37, 1,806,242.88 and 699,235.25

Step by Step Solution

1. Step 1: Write the proportion equation
   1,205,738.37 : 1,806,242.88 = 699,235.25 : x
2. Step 2: Convert to fraction form
   1,205,738.37/1,806,242.88 = 699,235.25/x
3. Step 3: Cross multiply
   1,205,738.37x = 1,806,242.88 × 699,235.25
4. Step 4: Simplify right side
   1,205,738.37x = 1,262,988,689,499.72
5. Step 5: Solve for x
   x = 1,262,988,689,499.72/1,205,738.37
6. Step 6: Final answer
   x = 1,047,481.54