Finding the Fourth Proportional to 1,578.01, 2,365.34 and 754.55

Step by Step Solution

1. Step 1: Write the proportion equation
   1,578.01 : 2,365.34 = 754.55 : x
2. Step 2: Convert to fraction form
   1,578.01/2,365.34 = 754.55/x
3. Step 3: Cross multiply
   1,578.01x = 2,365.34 × 754.55
4. Step 4: Simplify right side
   1,578.01x = 1,784,767.30
5. Step 5: Solve for x
   x = 1,784,767.30/1,578.01
6. Step 6: Final answer
   x = 1,131.02