Finding the Fourth Proportional to 1,142.02, 1,576.00 and 669.81

Step by Step Solution

1. Step 1: Write the proportion equation
   1,142.02 : 1,576.00 = 669.81 : x
2. Step 2: Convert to fraction form
   1,142.02/1,576.00 = 669.81/x
3. Step 3: Cross multiply
   1,142.02x = 1,576.00 × 669.81
4. Step 4: Simplify right side
   1,142.02x = 1,055,617.21
5. Step 5: Solve for x
   x = 1,055,617.21/1,142.02
6. Step 6: Final answer
   x = 924.34