Finding the Fourth Proportional to 1,048,820.13, 1,447,482.89 and 641,160.63

Step by Step Solution

1. Step 1: Write the proportion equation
   1,048,820.13 : 1,447,482.89 = 641,160.63 : x
2. Step 2: Convert to fraction form
   1,048,820.13/1,447,482.89 = 641,160.63/x
3. Step 3: Cross multiply
   1,048,820.13x = 1,447,482.89 × 641,160.63
4. Step 4: Simplify right side
   1,048,820.13x = 928,069,043,269.52
5. Step 5: Solve for x
   x = 928,069,043,269.52/1,048,820.13
6. Step 6: Final answer
   x = 884,869.59