Finding the Fourth Proportional to 2,645,111.60, 3,968,704.20 and 962,385.20

Step by Step Solution

1. Step 1: Write the proportion equation
   2,645,111.60 : 3,968,704.20 = 962,385.20 : x
2. Step 2: Convert to fraction form
   2,645,111.60/3,968,704.20 = 962,385.20/x
3. Step 3: Cross multiply
   2,645,111.60x = 3,968,704.20 × 962,385.20
4. Step 4: Simplify right side
   2,645,111.60x = 3,819,422,185,257.84
5. Step 5: Solve for x
   x = 3,819,422,185,257.84/2,645,111.60
6. Step 6: Final answer
   x = 1,443,955.02