Finding the Fourth Proportional to 2,322.89, 3,485.05 and 762.91

Step by Step Solution

1. Step 1: Write the proportion equation
   2,322.89 : 3,485.05 = 762.91 : x
2. Step 2: Convert to fraction form
   2,322.89/3,485.05 = 762.91/x
3. Step 3: Cross multiply
   2,322.89x = 3,485.05 × 762.91
4. Step 4: Simplify right side
   2,322.89x = 2,658,762.07
5. Step 5: Solve for x
   x = 2,658,762.07/2,322.89
6. Step 6: Final answer
   x = 1,144.59