Finding the Fourth Proportional to 1,346.06, 1,857.17 and 807.47

Step by Step Solution

1. Step 1: Write the proportion equation
   1,346.06 : 1,857.17 = 807.47 : x
2. Step 2: Convert to fraction form
   1,346.06/1,857.17 = 807.47/x
3. Step 3: Cross multiply
   1,346.06x = 1,857.17 × 807.47
4. Step 4: Simplify right side
   1,346.06x = 1,499,615.72
5. Step 5: Solve for x
   x = 1,499,615.72/1,346.06
6. Step 6: Final answer
   x = 1,114.08