Finding the Fourth Proportional to 2,638,248, 3,956,363.18 and 1,439,529.54

Step by Step Solution

1. Step 1: Write the proportion equation
   2,638,248 : 3,956,363.18 = 1,439,529.54 : x
2. Step 2: Convert to fraction form
   2,638,248/3,956,363.18 = 1,439,529.54/x
3. Step 3: Cross multiply
   2,638,248x = 3,956,363.18 × 1,439,529.54
4. Step 4: Simplify right side
   2,638,248x = 5,695,301,668,578.34
5. Step 5: Solve for x
   x = 5,695,301,668,578.34/2,638,248
6. Step 6: Final answer
   x = 2,158,743.86