Finding the Fourth Proportional to 1,746.72, 2,621.88 and 1,173.60

Step by Step Solution

1. Step 1: Write the proportion equation
   1,746.72 : 2,621.88 = 1,173.60 : x
2. Step 2: Convert to fraction form
   1,746.72/2,621.88 = 1,173.60/x
3. Step 3: Cross multiply
   1,746.72x = 2,621.88 × 1,173.60
4. Step 4: Simplify right side
   1,746.72x = 3,077,038.37
5. Step 5: Solve for x
   x = 3,077,038.37/1,746.72
6. Step 6: Final answer
   x = 1,761.61