Finding the Fourth Proportional to 1,368.81, 1,889.55 and 927.99

Step by Step Solution

1. Step 1: Write the proportion equation
   1,368.81 : 1,889.55 = 927.99 : x
2. Step 2: Convert to fraction form
   1,368.81/1,889.55 = 927.99/x
3. Step 3: Cross multiply
   1,368.81x = 1,889.55 × 927.99
4. Step 4: Simplify right side
   1,368.81x = 1,753,483.50
5. Step 5: Solve for x
   x = 1,753,483.50/1,368.81
6. Step 6: Final answer
   x = 1,281.03