Finding the Fourth Proportional to 1,980,499.40, 2,733,154.32 and 1,121,041.28

Step by Step Solution

1. Step 1: Write the proportion equation
   1,980,499.40 : 2,733,154.32 = 1,121,041.28 : x
2. Step 2: Convert to fraction form
   1,980,499.40/2,733,154.32 = 1,121,041.28/x
3. Step 3: Cross multiply
   1,980,499.40x = 2,733,154.32 × 1,121,041.28
4. Step 4: Simplify right side
   1,980,499.40x = 3,063,978,817,330.33
5. Step 5: Solve for x
   x = 3,063,978,817,330.33/1,980,499.40
6. Step 6: Final answer
   x = 1,547,073.84