Finding the Fourth Proportional to 1,567.58, 2,162.71 and 904.38

Step by Step Solution

1. Step 1: Write the proportion equation
   1,567.58 : 2,162.71 = 904.38 : x
2. Step 2: Convert to fraction form
   1,567.58/2,162.71 = 904.38/x
3. Step 3: Cross multiply
   1,567.58x = 2,162.71 × 904.38
4. Step 4: Simplify right side
   1,567.58x = 1,955,911.67
5. Step 5: Solve for x
   x = 1,955,911.67/1,567.58
6. Step 6: Final answer
   x = 1,247.73