Finding the Fourth Proportional to 1,257.61, 1,737.25 and 1,196.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,257.61 : 1,737.25 = 1,196.10 : x
2. Step 2: Convert to fraction form
   1,257.61/1,737.25 = 1,196.10/x
3. Step 3: Cross multiply
   1,257.61x = 1,737.25 × 1,196.10
4. Step 4: Simplify right side
   1,257.61x = 2,077,931.72
5. Step 5: Solve for x
   x = 2,077,931.72/1,257.61
6. Step 6: Final answer
   x = 1,652.28