Finding the Fourth Proportional to 1,432.63, 1,977.95 and 902.24

Step by Step Solution

1. Step 1: Write the proportion equation
   1,432.63 : 1,977.95 = 902.24 : x
2. Step 2: Convert to fraction form
   1,432.63/1,977.95 = 902.24/x
3. Step 3: Cross multiply
   1,432.63x = 1,977.95 × 902.24
4. Step 4: Simplify right side
   1,432.63x = 1,784,575.72
5. Step 5: Solve for x
   x = 1,784,575.72/1,432.63
6. Step 6: Final answer
   x = 1,245.66