Finding the Fourth Proportional to 1,147,065.30, 1,582,944.93 and 637,737.30

Step by Step Solution

1. Step 1: Write the proportion equation
   1,147,065.30 : 1,582,944.93 = 637,737.30 : x
2. Step 2: Convert to fraction form
   1,147,065.30/1,582,944.93 = 637,737.30/x
3. Step 3: Cross multiply
   1,147,065.30x = 1,582,944.93 × 637,737.30
4. Step 4: Simplify right side
   1,147,065.30x = 1,009,503,025,706.89
5. Step 5: Solve for x
   x = 1,009,503,025,706.89/1,147,065.30
6. Step 6: Final answer
   x = 880,074.59