Finding the Fourth Proportional to 1,395.48, 1,924.20 and 1,045.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,395.48 : 1,924.20 = 1,045.56 : x
2. Step 2: Convert to fraction form
   1,395.48/1,924.20 = 1,045.56/x
3. Step 3: Cross multiply
   1,395.48x = 1,924.20 × 1,045.56
4. Step 4: Simplify right side
   1,395.48x = 2,011,866.55
5. Step 5: Solve for x
   x = 2,011,866.55/1,395.48
6. Step 6: Final answer
   x = 1,441.70