Finding the Fourth Proportional to 1,567.18, 2,162.73 and 904.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,567.18 : 2,162.73 = 904.15 : x
2. Step 2: Convert to fraction form
   1,567.18/2,162.73 = 904.15/x
3. Step 3: Cross multiply
   1,567.18x = 2,162.73 × 904.15
4. Step 4: Simplify right side
   1,567.18x = 1,955,432.33
5. Step 5: Solve for x
   x = 1,955,432.33/1,567.18
6. Step 6: Final answer
   x = 1,247.74