Finding the Fourth Proportional to 1,743.58, 2,406.15 and 997.57

Step by Step Solution

1. Step 1: Write the proportion equation
   1,743.58 : 2,406.15 = 997.57 : x
2. Step 2: Convert to fraction form
   1,743.58/2,406.15 = 997.57/x
3. Step 3: Cross multiply
   1,743.58x = 2,406.15 × 997.57
4. Step 4: Simplify right side
   1,743.58x = 2,400,303.06
5. Step 5: Solve for x
   x = 2,400,303.06/1,743.58
6. Step 6: Final answer
   x = 1,376.65