Finding the Fourth Proportional to 1,733.55, 2,600.78 and 693.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,733.55 : 2,600.78 = 693.69 : x
2. Step 2: Convert to fraction form
   1,733.55/2,600.78 = 693.69/x
3. Step 3: Cross multiply
   1,733.55x = 2,600.78 × 693.69
4. Step 4: Simplify right side
   1,733.55x = 1,804,131.61
5. Step 5: Solve for x
   x = 1,804,131.61/1,733.55
6. Step 6: Final answer
   x = 1,040.72