Finding the Fourth Proportional to 1,018,145.55, 1,405,085.01 and 582,699.59

Step by Step Solution

1. Step 1: Write the proportion equation
   1,018,145.55 : 1,405,085.01 = 582,699.59 : x
2. Step 2: Convert to fraction form
   1,018,145.55/1,405,085.01 = 582,699.59/x
3. Step 3: Cross multiply
   1,018,145.55x = 1,405,085.01 × 582,699.59
4. Step 4: Simplify right side
   1,018,145.55x = 818,742,452,216.72
5. Step 5: Solve for x
   x = 818,742,452,216.72/1,018,145.55
6. Step 6: Final answer
   x = 804,150.70