Finding the Fourth Proportional to 1,401.71, 1,933.54 and 930.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,401.71 : 1,933.54 = 930.15 : x
2. Step 2: Convert to fraction form
   1,401.71/1,933.54 = 930.15/x
3. Step 3: Cross multiply
   1,401.71x = 1,933.54 × 930.15
4. Step 4: Simplify right side
   1,401.71x = 1,798,479.91
5. Step 5: Solve for x
   x = 1,798,479.91/1,401.71
6. Step 6: Final answer
   x = 1,283.07