Finding the Fourth Proportional to 1,607,061.12, 2,410,574.40 and 392,648.64

Step by Step Solution

1. Step 1: Write the proportion equation
   1,607,061.12 : 2,410,574.40 = 392,648.64 : x
2. Step 2: Convert to fraction form
   1,607,061.12/2,410,574.40 = 392,648.64/x
3. Step 3: Cross multiply
   1,607,061.12x = 2,410,574.40 × 392,648.64
4. Step 4: Simplify right side
   1,607,061.12x = 946,508,759,778.82
5. Step 5: Solve for x
   x = 946,508,759,778.82/1,607,061.12
6. Step 6: Final answer
   x = 588,968.74