Finding the Fourth Proportional to 1,429.95, 1,972.42 and 926.46

Step by Step Solution

1. Step 1: Write the proportion equation
   1,429.95 : 1,972.42 = 926.46 : x
2. Step 2: Convert to fraction form
   1,429.95/1,972.42 = 926.46/x
3. Step 3: Cross multiply
   1,429.95x = 1,972.42 × 926.46
4. Step 4: Simplify right side
   1,429.95x = 1,827,368.23
5. Step 5: Solve for x
   x = 1,827,368.23/1,429.95
6. Step 6: Final answer
   x = 1,277.92