Finding the Fourth Proportional to 1,300.88, 1,950.71 and 434.58

Step by Step Solution

1. Step 1: Write the proportion equation
   1,300.88 : 1,950.71 = 434.58 : x
2. Step 2: Convert to fraction form
   1,300.88/1,950.71 = 434.58/x
3. Step 3: Cross multiply
   1,300.88x = 1,950.71 × 434.58
4. Step 4: Simplify right side
   1,300.88x = 847,737.38
5. Step 5: Solve for x
   x = 847,737.38/1,300.88
6. Step 6: Final answer
   x = 651.67