Finding the Fourth Proportional to 1,350.06, 1,861.34 and 906.99

Step by Step Solution

1. Step 1: Write the proportion equation
   1,350.06 : 1,861.34 = 906.99 : x
2. Step 2: Convert to fraction form
   1,350.06/1,861.34 = 906.99/x
3. Step 3: Cross multiply
   1,350.06x = 1,861.34 × 906.99
4. Step 4: Simplify right side
   1,350.06x = 1,688,207.46
5. Step 5: Solve for x
   x = 1,688,207.46/1,350.06
6. Step 6: Final answer
   x = 1,250.47