Finding the Fourth Proportional to 1,777.89, 2,453.51 and 981.24

Step by Step Solution

1. Step 1: Write the proportion equation
   1,777.89 : 2,453.51 = 981.24 : x
2. Step 2: Convert to fraction form
   1,777.89/2,453.51 = 981.24/x
3. Step 3: Cross multiply
   1,777.89x = 2,453.51 × 981.24
4. Step 4: Simplify right side
   1,777.89x = 2,407,482.15
5. Step 5: Solve for x
   x = 2,407,482.15/1,777.89
6. Step 6: Final answer
   x = 1,354.12