Finding the Fourth Proportional to 1,118,514.15, 1,543,548.69 and 609,216.53

Step by Step Solution

1. Step 1: Write the proportion equation
   1,118,514.15 : 1,543,548.69 = 609,216.53 : x
2. Step 2: Convert to fraction form
   1,118,514.15/1,543,548.69 = 609,216.53/x
3. Step 3: Cross multiply
   1,118,514.15x = 1,543,548.69 × 609,216.53
4. Step 4: Simplify right side
   1,118,514.15x = 940,355,369,090.10
5. Step 5: Solve for x
   x = 940,355,369,090.10/1,118,514.15
6. Step 6: Final answer
   x = 840,718.35