Finding the Fourth Proportional to 1,371,128.72, 2,056,884.60 and 572,227.34

Step by Step Solution

1. Step 1: Write the proportion equation
   1,371,128.72 : 2,056,884.60 = 572,227.34 : x
2. Step 2: Convert to fraction form
   1,371,128.72/2,056,884.60 = 572,227.34/x
3. Step 3: Cross multiply
   1,371,128.72x = 2,056,884.60 × 572,227.34
4. Step 4: Simplify right side
   1,371,128.72x = 1,177,005,603,344.96
5. Step 5: Solve for x
   x = 1,177,005,603,344.96/1,371,128.72
6. Step 6: Final answer
   x = 858,420.94