Finding the Fourth Proportional to 1,070,128.56, 1,476,738.20 and 586,683.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,070,128.56 : 1,476,738.20 = 586,683.12 : x
2. Step 2: Convert to fraction form
   1,070,128.56/1,476,738.20 = 586,683.12/x
3. Step 3: Cross multiply
   1,070,128.56x = 1,476,738.20 × 586,683.12
4. Step 4: Simplify right side
   1,070,128.56x = 866,377,376,065.89
5. Step 5: Solve for x
   x = 866,377,376,065.89/1,070,128.56
6. Step 6: Final answer
   x = 809,601.21