Finding the Fourth Proportional to 2,083.59, 2,876.58 and 1,298.70

Step by Step Solution

1. Step 1: Write the proportion equation
   2,083.59 : 2,876.58 = 1,298.70 : x
2. Step 2: Convert to fraction form
   2,083.59/2,876.58 = 1,298.70/x
3. Step 3: Cross multiply
   2,083.59x = 2,876.58 × 1,298.70
4. Step 4: Simplify right side
   2,083.59x = 3,735,814.45
5. Step 5: Solve for x
   x = 3,735,814.45/2,083.59
6. Step 6: Final answer
   x = 1,792.97