Finding the Fourth Proportional to 1,300.64, 1,950.50 and 434.76

Step by Step Solution

1. Step 1: Write the proportion equation
   1,300.64 : 1,950.50 = 434.76 : x
2. Step 2: Convert to fraction form
   1,300.64/1,950.50 = 434.76/x
3. Step 3: Cross multiply
   1,300.64x = 1,950.50 × 434.76
4. Step 4: Simplify right side
   1,300.64x = 847,999.38
5. Step 5: Solve for x
   x = 847,999.38/1,300.64
6. Step 6: Final answer
   x = 651.99