Finding the Fourth Proportional to 931,301.65, 1,395,784.35 and 398,196.91

Step by Step Solution

1. Step 1: Write the proportion equation
   931,301.65 : 1,395,784.35 = 398,196.91 : x
2. Step 2: Convert to fraction form
   931,301.65/1,395,784.35 = 398,196.91/x
3. Step 3: Cross multiply
   931,301.65x = 1,395,784.35 × 398,196.91
4. Step 4: Simplify right side
   931,301.65x = 555,797,015,196.36
5. Step 5: Solve for x
   x = 555,797,015,196.36/931,301.65
6. Step 6: Final answer
   x = 596,795.91