Finding the Fourth Proportional to 2,618,909.80, 3,927,219.50 and 1,321,263.82

Step by Step Solution

1. Step 1: Write the proportion equation
   2,618,909.80 : 3,927,219.50 = 1,321,263.82 : x
2. Step 2: Convert to fraction form
   2,618,909.80/3,927,219.50 = 1,321,263.82/x
3. Step 3: Cross multiply
   2,618,909.80x = 3,927,219.50 × 1,321,263.82
4. Step 4: Simplify right side
   2,618,909.80x = 5,188,893,022,124.12
5. Step 5: Solve for x
   x = 5,188,893,022,124.12/2,618,909.80
6. Step 6: Final answer
   x = 1,981,317.96