Finding the Fourth Proportional to 1,552.59, 2,142.63 and 1,055.45

Step by Step Solution

1. Step 1: Write the proportion equation
   1,552.59 : 2,142.63 = 1,055.45 : x
2. Step 2: Convert to fraction form
   1,552.59/2,142.63 = 1,055.45/x
3. Step 3: Cross multiply
   1,552.59x = 2,142.63 × 1,055.45
4. Step 4: Simplify right side
   1,552.59x = 2,261,444.19
5. Step 5: Solve for x
   x = 2,261,444.19/1,552.59
6. Step 6: Final answer
   x = 1,456.56