Finding the Fourth Proportional to 1,300.07, 1,950.65 and 683.61

Step by Step Solution

1. Step 1: Write the proportion equation
   1,300.07 : 1,950.65 = 683.61 : x
2. Step 2: Convert to fraction form
   1,300.07/1,950.65 = 683.61/x
3. Step 3: Cross multiply
   1,300.07x = 1,950.65 × 683.61
4. Step 4: Simplify right side
   1,300.07x = 1,333,480.43
5. Step 5: Solve for x
   x = 1,333,480.43/1,300.07
6. Step 6: Final answer
   x = 1,025.70