Finding the Fourth Proportional to 1,018,111.65, 1,404,955.58 and 565,431.81

Step by Step Solution

1. Step 1: Write the proportion equation
   1,018,111.65 : 1,404,955.58 = 565,431.81 : x
2. Step 2: Convert to fraction form
   1,018,111.65/1,404,955.58 = 565,431.81/x
3. Step 3: Cross multiply
   1,018,111.65x = 1,404,955.58 × 565,431.81
4. Step 4: Simplify right side
   1,018,111.65x = 794,406,571,653.81
5. Step 5: Solve for x
   x = 794,406,571,653.81/1,018,111.65
6. Step 6: Final answer
   x = 780,274.52