Finding the Fourth Proportional to 1,069.92, 1,475.52 and 904.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,069.92 : 1,475.52 = 904.56 : x
2. Step 2: Convert to fraction form
   1,069.92/1,475.52 = 904.56/x
3. Step 3: Cross multiply
   1,069.92x = 1,475.52 × 904.56
4. Step 4: Simplify right side
   1,069.92x = 1,334,696.37
5. Step 5: Solve for x
   x = 1,334,696.37/1,069.92
6. Step 6: Final answer
   x = 1,247.47