Finding the Fourth Proportional to 1,501.39, 2,250.69 and 526.78

Step by Step Solution

1. Step 1: Write the proportion equation
   1,501.39 : 2,250.69 = 526.78 : x
2. Step 2: Convert to fraction form
   1,501.39/2,250.69 = 526.78/x
3. Step 3: Cross multiply
   1,501.39x = 2,250.69 × 526.78
4. Step 4: Simplify right side
   1,501.39x = 1,185,618.48
5. Step 5: Solve for x
   x = 1,185,618.48/1,501.39
6. Step 6: Final answer
   x = 789.68