Finding the Fourth Proportional to 1,300.71, 1,951.32 and 434.94

Step by Step Solution

1. Step 1: Write the proportion equation
   1,300.71 : 1,951.32 = 434.94 : x
2. Step 2: Convert to fraction form
   1,300.71/1,951.32 = 434.94/x
3. Step 3: Cross multiply
   1,300.71x = 1,951.32 × 434.94
4. Step 4: Simplify right side
   1,300.71x = 848,707.12
5. Step 5: Solve for x
   x = 848,707.12/1,300.71
6. Step 6: Final answer
   x = 652.50