Finding the Fourth Proportional to 2,678.31, 3,696.30 and 1,499.63

Step by Step Solution

1. Step 1: Write the proportion equation
   2,678.31 : 3,696.30 = 1,499.63 : x
2. Step 2: Convert to fraction form
   2,678.31/3,696.30 = 1,499.63/x
3. Step 3: Cross multiply
   2,678.31x = 3,696.30 × 1,499.63
4. Step 4: Simplify right side
   2,678.31x = 5,543,063.89
5. Step 5: Solve for x
   x = 5,543,063.89/2,678.31
6. Step 6: Final answer
   x = 2,069.61