Finding the Fourth Proportional to 1,354.48, 1,869.02 and 764.92

Step by Step Solution

1. Step 1: Write the proportion equation
   1,354.48 : 1,869.02 = 764.92 : x
2. Step 2: Convert to fraction form
   1,354.48/1,869.02 = 764.92/x
3. Step 3: Cross multiply
   1,354.48x = 1,869.02 × 764.92
4. Step 4: Simplify right side
   1,354.48x = 1,429,650.78
5. Step 5: Solve for x
   x = 1,429,650.78/1,354.48
6. Step 6: Final answer
   x = 1,055.50