Finding the Fourth Proportional to 1,784.95, 2,463.24 and 999.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,784.95 : 2,463.24 = 999.15 : x
2. Step 2: Convert to fraction form
   1,784.95/2,463.24 = 999.15/x
3. Step 3: Cross multiply
   1,784.95x = 2,463.24 × 999.15
4. Step 4: Simplify right side
   1,784.95x = 2,461,154.61
5. Step 5: Solve for x
   x = 2,461,154.61/1,784.95
6. Step 6: Final answer
   x = 1,378.83