Finding the Fourth Proportional to 1,073,185.44, 1,480,672.98 and 643,308.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,073,185.44 : 1,480,672.98 = 643,308.72 : x
2. Step 2: Convert to fraction form
   1,073,185.44/1,480,672.98 = 643,308.72/x
3. Step 3: Cross multiply
   1,073,185.44x = 1,480,672.98 × 643,308.72
4. Step 4: Simplify right side
   1,073,185.44x = 952,529,839,502.39
5. Step 5: Solve for x
   x = 952,529,839,502.39/1,073,185.44
6. Step 6: Final answer
   x = 887,572.46