Finding the Fourth Proportional to 942.31, 1,407.89 and 910.01

Step by Step Solution

1. Step 1: Write the proportion equation
   942.31 : 1,407.89 = 910.01 : x
2. Step 2: Convert to fraction form
   942.31/1,407.89 = 910.01/x
3. Step 3: Cross multiply
   942.31x = 1,407.89 × 910.01
4. Step 4: Simplify right side
   942.31x = 1,281,196.36
5. Step 5: Solve for x
   x = 1,281,196.36/942.31
6. Step 6: Final answer
   x = 1,359.63