Finding the Fourth Proportional to 1,917.34, 2,876.52 and 1,039.62

Step by Step Solution

1. Step 1: Write the proportion equation
   1,917.34 : 2,876.52 = 1,039.62 : x
2. Step 2: Convert to fraction form
   1,917.34/2,876.52 = 1,039.62/x
3. Step 3: Cross multiply
   1,917.34x = 2,876.52 × 1,039.62
4. Step 4: Simplify right side
   1,917.34x = 2,990,487.72
5. Step 5: Solve for x
   x = 2,990,487.72/1,917.34
6. Step 6: Final answer
   x = 1,559.71