Finding the Fourth Proportional to 1,298.04, 1,945.98 and 528

Step by Step Solution

1. Step 1: Write the proportion equation
   1,298.04 : 1,945.98 = 528 : x
2. Step 2: Convert to fraction form
   1,298.04/1,945.98 = 528/x
3. Step 3: Cross multiply
   1,298.04x = 1,945.98 × 528
4. Step 4: Simplify right side
   1,298.04x = 1,027,477.44
5. Step 5: Solve for x
   x = 1,027,477.44/1,298.04
6. Step 6: Final answer
   x = 791.56