Finding the Fourth Proportional to 1,253,667.25, 1,730,060.81 and 717,123.25

Step by Step Solution

1. Step 1: Write the proportion equation
   1,253,667.25 : 1,730,060.81 = 717,123.25 : x
2. Step 2: Convert to fraction form
   1,253,667.25/1,730,060.81 = 717,123.25/x
3. Step 3: Cross multiply
   1,253,667.25x = 1,730,060.81 × 717,123.25
4. Step 4: Simplify right side
   1,253,667.25x = 1,240,666,830,764.83
5. Step 5: Solve for x
   x = 1,240,666,830,764.83/1,253,667.25
6. Step 6: Final answer
   x = 989,630.09