Finding the Fourth Proportional to 1,872.42, 2,583.33 and 1,164.78

Step by Step Solution

1. Step 1: Write the proportion equation
   1,872.42 : 2,583.33 = 1,164.78 : x
2. Step 2: Convert to fraction form
   1,872.42/2,583.33 = 1,164.78/x
3. Step 3: Cross multiply
   1,872.42x = 2,583.33 × 1,164.78
4. Step 4: Simplify right side
   1,872.42x = 3,009,011.12
5. Step 5: Solve for x
   x = 3,009,011.12/1,872.42
6. Step 6: Final answer
   x = 1,607.02