Finding the Fourth Proportional to 1,050.32, 1,577.28 and 1,004.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,050.32 : 1,577.28 = 1,004.15 : x
2. Step 2: Convert to fraction form
   1,050.32/1,577.28 = 1,004.15/x
3. Step 3: Cross multiply
   1,050.32x = 1,577.28 × 1,004.15
4. Step 4: Simplify right side
   1,050.32x = 1,583,825.71
5. Step 5: Solve for x
   x = 1,583,825.71/1,050.32
6. Step 6: Final answer
   x = 1,507.95