Finding the Fourth Proportional to 2,519.60, 3,477.15 and 1,400.53

Step by Step Solution

1. Step 1: Write the proportion equation
   2,519.60 : 3,477.15 = 1,400.53 : x
2. Step 2: Convert to fraction form
   2,519.60/3,477.15 = 1,400.53/x
3. Step 3: Cross multiply
   2,519.60x = 3,477.15 × 1,400.53
4. Step 4: Simplify right side
   2,519.60x = 4,869,852.89
5. Step 5: Solve for x
   x = 4,869,852.89/2,519.60
6. Step 6: Final answer
   x = 1,932.79