Finding the Fourth Proportional to 2,216,118.96, 3,320,795.88 and 1,315,787.76

Step by Step Solution

1. Step 1: Write the proportion equation
   2,216,118.96 : 3,320,795.88 = 1,315,787.76 : x
2. Step 2: Convert to fraction form
   2,216,118.96/3,320,795.88 = 1,315,787.76/x
3. Step 3: Cross multiply
   2,216,118.96x = 3,320,795.88 × 1,315,787.76
4. Step 4: Simplify right side
   2,216,118.96x = 4,369,462,572,362.43
5. Step 5: Solve for x
   x = 4,369,462,572,362.43/2,216,118.96
6. Step 6: Final answer
   x = 1,971,673.30