Finding the Fourth Proportional to 1,289,347.82, 1,779,300.37 and 716,388.00

Step by Step Solution

1. Step 1: Write the proportion equation
   1,289,347.82 : 1,779,300.37 = 716,388.00 : x
2. Step 2: Convert to fraction form
   1,289,347.82/1,779,300.37 = 716,388.00/x
3. Step 3: Cross multiply
   1,289,347.82x = 1,779,300.37 × 716,388.00
4. Step 4: Simplify right side
   1,289,347.82x = 1,274,669,427,686.67
5. Step 5: Solve for x
   x = 1,274,669,427,686.67/1,289,347.82
6. Step 6: Final answer
   x = 988,615.64