Finding the Fourth Proportional to 1,983.84, 2,978.50 and 1,010.62

Step by Step Solution

1. Step 1: Write the proportion equation
   1,983.84 : 2,978.50 = 1,010.62 : x
2. Step 2: Convert to fraction form
   1,983.84/2,978.50 = 1,010.62/x
3. Step 3: Cross multiply
   1,983.84x = 2,978.50 × 1,010.62
4. Step 4: Simplify right side
   1,983.84x = 3,010,131.67
5. Step 5: Solve for x
   x = 3,010,131.67/1,983.84
6. Step 6: Final answer
   x = 1,517.33