Finding the Fourth Proportional to 2,699.20, 3,724.59 and 1,503.91

Step by Step Solution

1. Step 1: Write the proportion equation
   2,699.20 : 3,724.59 = 1,503.91 : x
2. Step 2: Convert to fraction form
   2,699.20/3,724.59 = 1,503.91/x
3. Step 3: Cross multiply
   2,699.20x = 3,724.59 × 1,503.91
4. Step 4: Simplify right side
   2,699.20x = 5,601,448.15
5. Step 5: Solve for x
   x = 5,601,448.15/2,699.20
6. Step 6: Final answer
   x = 2,075.23