Finding the Fourth Proportional to 1,429.60, 1,973.28 and 1,037.20

Step by Step Solution

1. Step 1: Write the proportion equation
   1,429.60 : 1,973.28 = 1,037.20 : x
2. Step 2: Convert to fraction form
   1,429.60/1,973.28 = 1,037.20/x
3. Step 3: Cross multiply
   1,429.60x = 1,973.28 × 1,037.20
4. Step 4: Simplify right side
   1,429.60x = 2,046,686.02
5. Step 5: Solve for x
   x = 2,046,686.02/1,429.60
6. Step 6: Final answer
   x = 1,431.65