Finding the Fourth Proportional to 1,069.48, 1,475.94 and 603.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,069.48 : 1,475.94 = 603.72 : x
2. Step 2: Convert to fraction form
   1,069.48/1,475.94 = 603.72/x
3. Step 3: Cross multiply
   1,069.48x = 1,475.94 × 603.72
4. Step 4: Simplify right side
   1,069.48x = 891,054.50
5. Step 5: Solve for x
   x = 891,054.50/1,069.48
6. Step 6: Final answer
   x = 833.17