Finding the Fourth Proportional to 2,334.93, 3,222.20 and 1,287.00

Step by Step Solution

1. Step 1: Write the proportion equation
   2,334.93 : 3,222.20 = 1,287.00 : x
2. Step 2: Convert to fraction form
   2,334.93/3,222.20 = 1,287.00/x
3. Step 3: Cross multiply
   2,334.93x = 3,222.20 × 1,287.00
4. Step 4: Simplify right side
   2,334.93x = 4,146,955.29
5. Step 5: Solve for x
   x = 4,146,955.29/2,334.93
6. Step 6: Final answer
   x = 1,776.05