Finding the Fourth Proportional to 2,445.89, 3,666.84 and 983.63

Step by Step Solution

1. Step 1: Write the proportion equation
   2,445.89 : 3,666.84 = 983.63 : x
2. Step 2: Convert to fraction form
   2,445.89/3,666.84 = 983.63/x
3. Step 3: Cross multiply
   2,445.89x = 3,666.84 × 983.63
4. Step 4: Simplify right side
   2,445.89x = 3,606,795.50
5. Step 5: Solve for x
   x = 3,606,795.50/2,445.89
6. Step 6: Final answer
   x = 1,474.64