Finding the Fourth Proportional to 1,037.83, 1,430.69 and 816.39

Step by Step Solution

1. Step 1: Write the proportion equation
   1,037.83 : 1,430.69 = 816.39 : x
2. Step 2: Convert to fraction form
   1,037.83/1,430.69 = 816.39/x
3. Step 3: Cross multiply
   1,037.83x = 1,430.69 × 816.39
4. Step 4: Simplify right side
   1,037.83x = 1,168,002.29
5. Step 5: Solve for x
   x = 1,168,002.29/1,037.83
6. Step 6: Final answer
   x = 1,125.43