Finding the Fourth Proportional to 1,300.94, 1,951.43 and 521.01

Step by Step Solution

1. Step 1: Write the proportion equation
   1,300.94 : 1,951.43 = 521.01 : x
2. Step 2: Convert to fraction form
   1,300.94/1,951.43 = 521.01/x
3. Step 3: Cross multiply
   1,300.94x = 1,951.43 × 521.01
4. Step 4: Simplify right side
   1,300.94x = 1,016,711.94
5. Step 5: Solve for x
   x = 1,016,711.94/1,300.94
6. Step 6: Final answer
   x = 781.52