Finding the Fourth Proportional to 1,643.32, 2,267.88 and 944.76

Step by Step Solution

1. Step 1: Write the proportion equation
   1,643.32 : 2,267.88 = 944.76 : x
2. Step 2: Convert to fraction form
   1,643.32/2,267.88 = 944.76/x
3. Step 3: Cross multiply
   1,643.32x = 2,267.88 × 944.76
4. Step 4: Simplify right side
   1,643.32x = 2,142,602.31
5. Step 5: Solve for x
   x = 2,142,602.31/1,643.32
6. Step 6: Final answer
   x = 1,303.83