Finding the Fourth Proportional to 1,773.52, 2,447.56 and 987.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,773.52 : 2,447.56 = 987.56 : x
2. Step 2: Convert to fraction form
   1,773.52/2,447.56 = 987.56/x
3. Step 3: Cross multiply
   1,773.52x = 2,447.56 × 987.56
4. Step 4: Simplify right side
   1,773.52x = 2,417,112.35
5. Step 5: Solve for x
   x = 2,417,112.35/1,773.52
6. Step 6: Final answer
   x = 1,362.89