Finding the Fourth Proportional to 788,987.34, 1,088,536.59 and 449,215.02

Step by Step Solution

1. Step 1: Write the proportion equation
   788,987.34 : 1,088,536.59 = 449,215.02 : x
2. Step 2: Convert to fraction form
   788,987.34/1,088,536.59 = 449,215.02/x
3. Step 3: Cross multiply
   788,987.34x = 1,088,536.59 × 449,215.02
4. Step 4: Simplify right side
   788,987.34x = 488,986,986,047.58
5. Step 5: Solve for x
   x = 488,986,986,047.58/788,987.34
6. Step 6: Final answer
   x = 619,765.31