Finding the Fourth Proportional to 1,300.54, 1,950.81 and 530.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,300.54 : 1,950.81 = 530.50 : x
2. Step 2: Convert to fraction form
   1,300.54/1,950.81 = 530.50/x
3. Step 3: Cross multiply
   1,300.54x = 1,950.81 × 530.50
4. Step 4: Simplify right side
   1,300.54x = 1,034,904.71
5. Step 5: Solve for x
   x = 1,034,904.71/1,300.54
6. Step 6: Final answer
   x = 795.75