Finding the Fourth Proportional to 1,356.69, 2,035.89 and 707.88

Step by Step Solution

1. Step 1: Write the proportion equation
   1,356.69 : 2,035.89 = 707.88 : x
2. Step 2: Convert to fraction form
   1,356.69/2,035.89 = 707.88/x
3. Step 3: Cross multiply
   1,356.69x = 2,035.89 × 707.88
4. Step 4: Simplify right side
   1,356.69x = 1,441,165.81
5. Step 5: Solve for x
   x = 1,441,165.81/1,356.69
6. Step 6: Final answer
   x = 1,062.27