Finding the Fourth Proportional to 2,231,156.84, 3,078,878.40 and 1,264,298.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,231,156.84 : 3,078,878.40 = 1,264,298.72 : x
2. Step 2: Convert to fraction form
   2,231,156.84/3,078,878.40 = 1,264,298.72/x
3. Step 3: Cross multiply
   2,231,156.84x = 3,078,878.40 × 1,264,298.72
4. Step 4: Simplify right side
   2,231,156.84x = 3,892,622,020,155.65
5. Step 5: Solve for x
   x = 3,892,622,020,155.65/2,231,156.84
6. Step 6: Final answer
   x = 1,744,665.35