Finding the Fourth Proportional to 1,989,941.56, 2,984,620.72 and 978,792.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,989,941.56 : 2,984,620.72 = 978,792.10 : x
2. Step 2: Convert to fraction form
   1,989,941.56/2,984,620.72 = 978,792.10/x
3. Step 3: Cross multiply
   1,989,941.56x = 2,984,620.72 × 978,792.10
4. Step 4: Simplify right side
   1,989,941.56x = 2,921,323,182,232.31
5. Step 5: Solve for x
   x = 2,921,323,182,232.31/1,989,941.56
6. Step 6: Final answer
   x = 1,468,044.71