Finding the Fourth Proportional to 1,111,443.12, 1,533,862.17 and 681,664.68

Step by Step Solution

1. Step 1: Write the proportion equation
   1,111,443.12 : 1,533,862.17 = 681,664.68 : x
2. Step 2: Convert to fraction form
   1,111,443.12/1,533,862.17 = 681,664.68/x
3. Step 3: Cross multiply
   1,111,443.12x = 1,533,862.17 × 681,664.68
4. Step 4: Simplify right side
   1,111,443.12x = 1,045,579,665,277.16
5. Step 5: Solve for x
   x = 1,045,579,665,277.16/1,111,443.12
6. Step 6: Final answer
   x = 940,740.60