Finding the Fourth Proportional to 1,133.83, 1,700.76 and 312.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,133.83 : 1,700.76 = 312.10 : x
2. Step 2: Convert to fraction form
   1,133.83/1,700.76 = 312.10/x
3. Step 3: Cross multiply
   1,133.83x = 1,700.76 × 312.10
4. Step 4: Simplify right side
   1,133.83x = 530,798.69
5. Step 5: Solve for x
   x = 530,798.69/1,133.83
6. Step 6: Final answer
   x = 468.15