Finding the Fourth Proportional to 1,300.03, 1,950.15 and 434.35

Step by Step Solution

1. Step 1: Write the proportion equation
   1,300.03 : 1,950.15 = 434.35 : x
2. Step 2: Convert to fraction form
   1,300.03/1,950.15 = 434.35/x
3. Step 3: Cross multiply
   1,300.03x = 1,950.15 × 434.35
4. Step 4: Simplify right side
   1,300.03x = 847,047.65
5. Step 5: Solve for x
   x = 847,047.65/1,300.03
6. Step 6: Final answer
   x = 651.56