Finding the Fourth Proportional to 2,473.60, 3,705.42 and 1,155.53

Step by Step Solution

1. Step 1: Write the proportion equation
   2,473.60 : 3,705.42 = 1,155.53 : x
2. Step 2: Convert to fraction form
   2,473.60/3,705.42 = 1,155.53/x
3. Step 3: Cross multiply
   2,473.60x = 3,705.42 × 1,155.53
4. Step 4: Simplify right side
   2,473.60x = 4,281,705.45
5. Step 5: Solve for x
   x = 4,281,705.45/2,473.60
6. Step 6: Final answer
   x = 1,730.96