Finding the Fourth Proportional to 1,255.00, 1,881.58 and 524.78

Step by Step Solution

1. Step 1: Write the proportion equation
   1,255.00 : 1,881.58 = 524.78 : x
2. Step 2: Convert to fraction form
   1,255.00/1,881.58 = 524.78/x
3. Step 3: Cross multiply
   1,255.00x = 1,881.58 × 524.78
4. Step 4: Simplify right side
   1,255.00x = 987,412.93
5. Step 5: Solve for x
   x = 987,412.93/1,255.00
6. Step 6: Final answer
   x = 786.79