Finding the Fourth Proportional to 1,112.58, 1,666.71 and 598.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,112.58 : 1,666.71 = 598.50 : x
2. Step 2: Convert to fraction form
   1,112.58/1,666.71 = 598.50/x
3. Step 3: Cross multiply
   1,112.58x = 1,666.71 × 598.50
4. Step 4: Simplify right side
   1,112.58x = 997,525.94
5. Step 5: Solve for x
   x = 997,525.94/1,112.58
6. Step 6: Final answer
   x = 896.59