Finding the Fourth Proportional to 2,625,595.88, 3,938,394.49 and 828,620.00

Step by Step Solution

1. Step 1: Write the proportion equation
   2,625,595.88 : 3,938,394.49 = 828,620.00 : x
2. Step 2: Convert to fraction form
   2,625,595.88/3,938,394.49 = 828,620.00/x
3. Step 3: Cross multiply
   2,625,595.88x = 3,938,394.49 × 828,620.00
4. Step 4: Simplify right side
   2,625,595.88x = 3,263,432,422,611.83
5. Step 5: Solve for x
   x = 3,263,432,422,611.83/2,625,595.88
6. Step 6: Final answer
   x = 1,242,930.20