Finding the Fourth Proportional to 1,514.90, 2,091.45 and 983.94

Step by Step Solution

1. Step 1: Write the proportion equation
   1,514.90 : 2,091.45 = 983.94 : x
2. Step 2: Convert to fraction form
   1,514.90/2,091.45 = 983.94/x
3. Step 3: Cross multiply
   1,514.90x = 2,091.45 × 983.94
4. Step 4: Simplify right side
   1,514.90x = 2,057,861.31
5. Step 5: Solve for x
   x = 2,057,861.31/1,514.90
6. Step 6: Final answer
   x = 1,358.42