Finding the Fourth Proportional to 1,430.34, 1,974.20 and 932.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,430.34 : 1,974.20 = 932.10 : x
2. Step 2: Convert to fraction form
   1,430.34/1,974.20 = 932.10/x
3. Step 3: Cross multiply
   1,430.34x = 1,974.20 × 932.10
4. Step 4: Simplify right side
   1,430.34x = 1,840,147.16
5. Step 5: Solve for x
   x = 1,840,147.16/1,430.34
6. Step 6: Final answer
   x = 1,286.51