Finding the Fourth Proportional to 1,784.61, 2,462.72 and 987.93

Step by Step Solution

1. Step 1: Write the proportion equation
   1,784.61 : 2,462.72 = 987.93 : x
2. Step 2: Convert to fraction form
   1,784.61/2,462.72 = 987.93/x
3. Step 3: Cross multiply
   1,784.61x = 2,462.72 × 987.93
4. Step 4: Simplify right side
   1,784.61x = 2,432,990.03
5. Step 5: Solve for x
   x = 2,432,990.03/1,784.61
6. Step 6: Final answer
   x = 1,363.32