Finding the Fourth Proportional to 2,015,515, 3,023,253.72 and 817,152.48

Step by Step Solution

1. Step 1: Write the proportion equation
   2,015,515 : 3,023,253.72 = 817,152.48 : x
2. Step 2: Convert to fraction form
   2,015,515/3,023,253.72 = 817,152.48/x
3. Step 3: Cross multiply
   2,015,515x = 3,023,253.72 × 817,152.48
4. Step 4: Simplify right side
   2,015,515x = 2,470,459,274,967.23
5. Step 5: Solve for x
   x = 2,470,459,274,967.23/2,015,515
6. Step 6: Final answer
   x = 1,225,721.11