Finding the Fourth Proportional to 1,725.42, 2,587.46 and 904.39

Step by Step Solution

1. Step 1: Write the proportion equation
   1,725.42 : 2,587.46 = 904.39 : x
2. Step 2: Convert to fraction form
   1,725.42/2,587.46 = 904.39/x
3. Step 3: Cross multiply
   1,725.42x = 2,587.46 × 904.39
4. Step 4: Simplify right side
   1,725.42x = 2,340,061.96
5. Step 5: Solve for x
   x = 2,340,061.96/1,725.42
6. Step 6: Final answer
   x = 1,356.22