Finding the Fourth Proportional to 1,059,978.76, 1,462,637.84 and 716,561.88

Step by Step Solution

1. Step 1: Write the proportion equation
   1,059,978.76 : 1,462,637.84 = 716,561.88 : x
2. Step 2: Convert to fraction form
   1,059,978.76/1,462,637.84 = 716,561.88/x
3. Step 3: Cross multiply
   1,059,978.76x = 1,462,637.84 × 716,561.88
4. Step 4: Simplify right side
   1,059,978.76x = 1,048,070,520,389.54
5. Step 5: Solve for x
   x = 1,048,070,520,389.54/1,059,978.76
6. Step 6: Final answer
   x = 988,765.59