Finding the Fourth Proportional to 1,552.51, 2,318.72 and 1,405.97

Step by Step Solution

1. Step 1: Write the proportion equation
   1,552.51 : 2,318.72 = 1,405.97 : x
2. Step 2: Convert to fraction form
   1,552.51/2,318.72 = 1,405.97/x
3. Step 3: Cross multiply
   1,552.51x = 2,318.72 × 1,405.97
4. Step 4: Simplify right side
   1,552.51x = 3,260,050.76
5. Step 5: Solve for x
   x = 3,260,050.76/1,552.51
6. Step 6: Final answer
   x = 2,099.86