Finding the Fourth Proportional to 1,145.99, 1,719.89 and 598.34

Step by Step Solution

1. Step 1: Write the proportion equation
   1,145.99 : 1,719.89 = 598.34 : x
2. Step 2: Convert to fraction form
   1,145.99/1,719.89 = 598.34/x
3. Step 3: Cross multiply
   1,145.99x = 1,719.89 × 598.34
4. Step 4: Simplify right side
   1,145.99x = 1,029,078.98
5. Step 5: Solve for x
   x = 1,029,078.98/1,145.99
6. Step 6: Final answer
   x = 897.98