Finding the Fourth Proportional to 1,814.42, 2,720.72 and 888.58

Step by Step Solution

1. Step 1: Write the proportion equation
   1,814.42 : 2,720.72 = 888.58 : x
2. Step 2: Convert to fraction form
   1,814.42/2,720.72 = 888.58/x
3. Step 3: Cross multiply
   1,814.42x = 2,720.72 × 888.58
4. Step 4: Simplify right side
   1,814.42x = 2,417,577.38
5. Step 5: Solve for x
   x = 2,417,577.38/1,814.42
6. Step 6: Final answer
   x = 1,332.42