Finding the Fourth Proportional to 2,376.76, 3,279.72 and 1,328.62

Step by Step Solution

1. Step 1: Write the proportion equation
   2,376.76 : 3,279.72 = 1,328.62 : x
2. Step 2: Convert to fraction form
   2,376.76/3,279.72 = 1,328.62/x
3. Step 3: Cross multiply
   2,376.76x = 3,279.72 × 1,328.62
4. Step 4: Simplify right side
   2,376.76x = 4,357,501.59
5. Step 5: Solve for x
   x = 4,357,501.59/2,376.76
6. Step 6: Final answer
   x = 1,833.38