Finding the Fourth Proportional to 1,111.14, 1,666.68 and 623.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,111.14 : 1,666.68 = 623.52 : x
2. Step 2: Convert to fraction form
   1,111.14/1,666.68 = 623.52/x
3. Step 3: Cross multiply
   1,111.14x = 1,666.68 × 623.52
4. Step 4: Simplify right side
   1,111.14x = 1,039,208.31
5. Step 5: Solve for x
   x = 1,039,208.31/1,111.14
6. Step 6: Final answer
   x = 935.26