Finding the Fourth Proportional to 1,346.39, 1,857.81 and 756.81

Step by Step Solution

1. Step 1: Write the proportion equation
   1,346.39 : 1,857.81 = 756.81 : x
2. Step 2: Convert to fraction form
   1,346.39/1,857.81 = 756.81/x
3. Step 3: Cross multiply
   1,346.39x = 1,857.81 × 756.81
4. Step 4: Simplify right side
   1,346.39x = 1,406,009.19
5. Step 5: Solve for x
   x = 1,406,009.19/1,346.39
6. Step 6: Final answer
   x = 1,044.28