Finding the Fourth Proportional to 1,816.79, 2,490.83 and 1,783.99

Step by Step Solution

1. Step 1: Write the proportion equation
   1,816.79 : 2,490.83 = 1,783.99 : x
2. Step 2: Convert to fraction form
   1,816.79/2,490.83 = 1,783.99/x
3. Step 3: Cross multiply
   1,816.79x = 2,490.83 × 1,783.99
4. Step 4: Simplify right side
   1,816.79x = 4,443,614.04
5. Step 5: Solve for x
   x = 4,443,614.04/1,816.79
6. Step 6: Final answer
   x = 2,445.86