Finding the Fourth Proportional to 1,724.07, 2,378.15 and 1,503.55

Step by Step Solution

1. Step 1: Write the proportion equation
   1,724.07 : 2,378.15 = 1,503.55 : x
2. Step 2: Convert to fraction form
   1,724.07/2,378.15 = 1,503.55/x
3. Step 3: Cross multiply
   1,724.07x = 2,378.15 × 1,503.55
4. Step 4: Simplify right side
   1,724.07x = 3,575,667.43
5. Step 5: Solve for x
   x = 3,575,667.43/1,724.07
6. Step 6: Final answer
   x = 2,073.97