Finding the Fourth Proportional to 1,123,862.17, 1,686,217.98 and 674,896.06

Step by Step Solution

1. Step 1: Write the proportion equation
   1,123,862.17 : 1,686,217.98 = 674,896.06 : x
2. Step 2: Convert to fraction form
   1,123,862.17/1,686,217.98 = 674,896.06/x
3. Step 3: Cross multiply
   1,123,862.17x = 1,686,217.98 × 674,896.06
4. Step 4: Simplify right side
   1,123,862.17x = 1,138,021,871,003.16
5. Step 5: Solve for x
   x = 1,138,021,871,003.16/1,123,862.17
6. Step 6: Final answer
   x = 1,012,599.14