Finding the Fourth Proportional to 1,145,478.16, 1,580,667.37 and 662,074.62

Step by Step Solution

1. Step 1: Write the proportion equation
   1,145,478.16 : 1,580,667.37 = 662,074.62 : x
2. Step 2: Convert to fraction form
   1,145,478.16/1,580,667.37 = 662,074.62/x
3. Step 3: Cross multiply
   1,145,478.16x = 1,580,667.37 × 662,074.62
4. Step 4: Simplify right side
   1,145,478.16x = 1,046,519,748,339.15
5. Step 5: Solve for x
   x = 1,046,519,748,339.15/1,145,478.16
6. Step 6: Final answer
   x = 913,609.52