Finding the Fourth Proportional to 1,725.45, 2,589.27 and 904.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,725.45 : 2,589.27 = 904.31 : x
2. Step 2: Convert to fraction form
   1,725.45/2,589.27 = 904.31/x
3. Step 3: Cross multiply
   1,725.45x = 2,589.27 × 904.31
4. Step 4: Simplify right side
   1,725.45x = 2,341,510.69
5. Step 5: Solve for x
   x = 2,341,510.69/1,725.45
6. Step 6: Final answer
   x = 1,357.04