Finding the Fourth Proportional to 1,118,412.35, 1,543,426.62 and 609,114.32

Step by Step Solution

1. Step 1: Write the proportion equation
   1,118,412.35 : 1,543,426.62 = 609,114.32 : x
2. Step 2: Convert to fraction form
   1,118,412.35/1,543,426.62 = 609,114.32/x
3. Step 3: Cross multiply
   1,118,412.35x = 1,543,426.62 × 609,114.32
4. Step 4: Simplify right side
   1,118,412.35x = 940,123,256,111.20
5. Step 5: Solve for x
   x = 940,123,256,111.20/1,118,412.35
6. Step 6: Final answer
   x = 840,587.33