Finding the Fourth Proportional to 1,354.37, 1,868.85 and 764.91

Step by Step Solution

1. Step 1: Write the proportion equation
   1,354.37 : 1,868.85 = 764.91 : x
2. Step 2: Convert to fraction form
   1,354.37/1,868.85 = 764.91/x
3. Step 3: Cross multiply
   1,354.37x = 1,868.85 × 764.91
4. Step 4: Simplify right side
   1,354.37x = 1,429,502.05
5. Step 5: Solve for x
   x = 1,429,502.05/1,354.37
6. Step 6: Final answer
   x = 1,055.48