Finding the Fourth Proportional to 1,114,820.72, 1,538,457 and 605,531.60

Step by Step Solution

1. Step 1: Write the proportion equation
   1,114,820.72 : 1,538,457 = 605,531.60 : x
2. Step 2: Convert to fraction form
   1,114,820.72/1,538,457 = 605,531.60/x
3. Step 3: Cross multiply
   1,114,820.72x = 1,538,457 × 605,531.60
4. Step 4: Simplify right side
   1,114,820.72x = 931,584,328,741.20
5. Step 5: Solve for x
   x = 931,584,328,741.20/1,114,820.72
6. Step 6: Final answer
   x = 835,636.00