Finding the Fourth Proportional to 1,110,810.31, 1,665,871.01 and 400,746.08

Step by Step Solution

1. Step 1: Write the proportion equation
   1,110,810.31 : 1,665,871.01 = 400,746.08 : x
2. Step 2: Convert to fraction form
   1,110,810.31/1,665,871.01 = 400,746.08/x
3. Step 3: Cross multiply
   1,110,810.31x = 1,665,871.01 × 400,746.08
4. Step 4: Simplify right side
   1,110,810.31x = 667,591,280,706.89
5. Step 5: Solve for x
   x = 667,591,280,706.89/1,110,810.31
6. Step 6: Final answer
   x = 600,994.86