Finding the Fourth Proportional to 1,349.71, 1,861.97 and 976.09

Step by Step Solution

1. Step 1: Write the proportion equation
   1,349.71 : 1,861.97 = 976.09 : x
2. Step 2: Convert to fraction form
   1,349.71/1,861.97 = 976.09/x
3. Step 3: Cross multiply
   1,349.71x = 1,861.97 × 976.09
4. Step 4: Simplify right side
   1,349.71x = 1,817,450.30
5. Step 5: Solve for x
   x = 1,817,450.30/1,349.71
6. Step 6: Final answer
   x = 1,346.55