Finding the Fourth Proportional to 942,456.51, 1,300,595.64 and 512,739.72

Step by Step Solution

1. Step 1: Write the proportion equation
   942,456.51 : 1,300,595.64 = 512,739.72 : x
2. Step 2: Convert to fraction form
   942,456.51/1,300,595.64 = 512,739.72/x
3. Step 3: Cross multiply
   942,456.51x = 1,300,595.64 × 512,739.72
4. Step 4: Simplify right side
   942,456.51x = 666,867,044,286.82
5. Step 5: Solve for x
   x = 666,867,044,286.82/942,456.51
6. Step 6: Final answer
   x = 707,583.89