Finding the Fourth Proportional to 2,526,139.76, 3,789,156.36 and 820,281.20

Step by Step Solution

1. Step 1: Write the proportion equation
   2,526,139.76 : 3,789,156.36 = 820,281.20 : x
2. Step 2: Convert to fraction form
   2,526,139.76/3,789,156.36 = 820,281.20/x
3. Step 3: Cross multiply
   2,526,139.76x = 3,789,156.36 × 820,281.20
4. Step 4: Simplify right side
   2,526,139.76x = 3,108,173,725,968.43
5. Step 5: Solve for x
   x = 3,108,173,725,968.43/2,526,139.76
6. Step 6: Final answer
   x = 1,230,404.50