Finding the Fourth Proportional to 1,430.05, 1,972.74 and 933.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,430.05 : 1,972.74 = 933.52 : x
2. Step 2: Convert to fraction form
   1,430.05/1,972.74 = 933.52/x
3. Step 3: Cross multiply
   1,430.05x = 1,972.74 × 933.52
4. Step 4: Simplify right side
   1,430.05x = 1,841,592.24
5. Step 5: Solve for x
   x = 1,841,592.24/1,430.05
6. Step 6: Final answer
   x = 1,287.78