Finding the Fourth Proportional to 1,784.10, 2,462.04 and 987.48

Step by Step Solution

1. Step 1: Write the proportion equation
   1,784.10 : 2,462.04 = 987.48 : x
2. Step 2: Convert to fraction form
   1,784.10/2,462.04 = 987.48/x
3. Step 3: Cross multiply
   1,784.10x = 2,462.04 × 987.48
4. Step 4: Simplify right side
   1,784.10x = 2,431,215.26
5. Step 5: Solve for x
   x = 2,431,215.26/1,784.10
6. Step 6: Final answer
   x = 1,362.71