Finding the Fourth Proportional to 1,118,410.10, 1,543,423.52 and 609,112.07

Step by Step Solution

1. Step 1: Write the proportion equation
   1,118,410.10 : 1,543,423.52 = 609,112.07 : x
2. Step 2: Convert to fraction form
   1,118,410.10/1,543,423.52 = 609,112.07/x
3. Step 3: Cross multiply
   1,118,410.10x = 1,543,423.52 × 609,112.07
4. Step 4: Simplify right side
   1,118,410.10x = 940,117,895,153.89
5. Step 5: Solve for x
   x = 940,117,895,153.89/1,118,410.10
6. Step 6: Final answer
   x = 840,584.23