Finding the Fourth Proportional to 1,756.61, 2,638.33 and 1,292.55

Step by Step Solution

1. Step 1: Write the proportion equation
   1,756.61 : 2,638.33 = 1,292.55 : x
2. Step 2: Convert to fraction form
   1,756.61/2,638.33 = 1,292.55/x
3. Step 3: Cross multiply
   1,756.61x = 2,638.33 × 1,292.55
4. Step 4: Simplify right side
   1,756.61x = 3,410,180.10
5. Step 5: Solve for x
   x = 3,410,180.10/1,756.61
6. Step 6: Final answer
   x = 1,941.34