Finding the Fourth Proportional to 1,396.41, 1,927.40 and 807.32

Step by Step Solution

1. Step 1: Write the proportion equation
   1,396.41 : 1,927.40 = 807.32 : x
2. Step 2: Convert to fraction form
   1,396.41/1,927.40 = 807.32/x
3. Step 3: Cross multiply
   1,396.41x = 1,927.40 × 807.32
4. Step 4: Simplify right side
   1,396.41x = 1,556,014.89
5. Step 5: Solve for x
   x = 1,556,014.89/1,396.41
6. Step 6: Final answer
   x = 1,114.30