Finding the Fourth Proportional to 2,477.69, 3,419.31 and 1,415.63

Step by Step Solution

1. Step 1: Write the proportion equation
   2,477.69 : 3,419.31 = 1,415.63 : x
2. Step 2: Convert to fraction form
   2,477.69/3,419.31 = 1,415.63/x
3. Step 3: Cross multiply
   2,477.69x = 3,419.31 × 1,415.63
4. Step 4: Simplify right side
   2,477.69x = 4,840,460.72
5. Step 5: Solve for x
   x = 4,840,460.72/2,477.69
6. Step 6: Final answer
   x = 1,953.62