Finding the Fourth Proportional to 2,087,817.34, 3,131,727.72 and 571,512.87

Step by Step Solution

1. Step 1: Write the proportion equation
   2,087,817.34 : 3,131,727.72 = 571,512.87 : x
2. Step 2: Convert to fraction form
   2,087,817.34/3,131,727.72 = 571,512.87/x
3. Step 3: Cross multiply
   2,087,817.34x = 3,131,727.72 × 571,512.87
4. Step 4: Simplify right side
   2,087,817.34x = 1,789,822,697,315.76
5. Step 5: Solve for x
   x = 1,789,822,697,315.76/2,087,817.34
6. Step 6: Final answer
   x = 857,269.77